Birding 12 days (March) in Costa Rica. The complete list for the whole group was 400 bird species, but I only recorded 349 species, of which 230 lifers:
| Common name | Scientific name | Count | Location | Date |
| Tinamous (Tinamidae) | ||||
| Great Tinamou | Tinamus major | 2 | Parque Nacional de Carara | 07-03-2017 |
| Ducks, Geese and Swans (Anatidae) | ||||
| Black-bellied Whistling Duck | Dendrocygna autumnalis | 30 | La Fortuna | 02-03-2017 |
| Muscovy Duck | Cairina moschata | 1 | Rio Cuarros | 06-03-2017 |
| 1 | Rio Tárcoles | 07-03-2017 | ||
| Blue-winged Teal | Anas discors | 30 | La Ensenada | 11-03-2017 |
| Northern Shoveler | Anas clypeata | 1 | La Ensenada | 11-03-2017 |
| Chachalacas, Curassows and Guans (Cracidae) | ||||
| Grey-headed Chachalaca | Ortalis cinereiceps | 8 | La Fortuna | 02-03-2017 |
| 1 | Punta Leona | 08-03-2017 | ||
| Crested Guan | Penelope purpurascens | 1 | San Miguel | 02-03-2017 |
| 4 | Arenal | 03-03-2017 | ||
| 4 | La Selva Biological Station | 05-03-2017 | ||
| 1 | La Selva Biological Station | 06-03-2017 | ||
| Black Guan | Chamaepetes unicolor | 1 | San Gerardo de Dota | 08-03-2017 |
| 2 | San Gerardo de Dota | 09-03-2017 | ||
| Great Curassow | Crax rubra | 4 | Arenal | 03-03-2017 |
| 1 | Arenal | 04-03-2017 | ||
| 2 | La Selva Biological Station | 05-03-2017 | ||
| New World Quail (Odontophoridae) | ||||
| Crested Bobwhite | Colinus cristatus | 6 | La Ensenada | 11-03-2017 |
| Storks (Ciconiidae) | ||||
| Wood Stork | Mycteria americana | 20 | La Ensenada | 11-03-2017 |
| Ibises, Spoonbills (Threskiornithidae) | ||||
| American White Ibis | Eudocimus albus | 6 | Rio Tárcoles | 07-03-2017 |
| 3 | La Ensenada | 11-03-2017 | ||
| 10 | Chomes | 12-03-2017 | ||
| Roseate Spoonbill | Platalea ajaja | 3 | Rio Tárcoles | 07-03-2017 |
| 7 | La Ensenada | 11-03-2017 | ||
| Herons, Bitterns (Ardeidae) | ||||
| Fasciated Tiger Heron | Tigrisoma fasciatum | 1 | La Fortuna | 02-03-2017 |
| Bare-throated Tiger Heron | Tigrisoma mexicanum | 1 | Rio Tárcoles | 07-03-2017 |
| Boat-billed Heron | Cochlearius cochlearius | 3 | Rio Tárcoles | 07-03-2017 |
| Yellow-crowned Night Heron | Nyctanassa violacea | 1 | La Fortuna | 02-03-2017 |
| 1 | Rio Tárcoles | 07-03-2017 | ||
| 2 | La Ensenada | 11-03-2017 | ||
| Green Heron | Butorides virescens | 1 | Rio Tárcoles | 07-03-2017 |
| Western Cattle Egret | Bubulcus ibis | 20 | La Fortuna | 02-03-2017 |
| 5 | Arenal | 03-03-2017 | ||
| 15 | Arenal | 04-03-2017 | ||
| 15 | Rio Tárcoles | 07-03-2017 | ||
| 3 | Matapalo | 08-03-2017 | ||
| 12 | Mata de Limón | 10-03-2017 | ||
| 6 | Chomes | 12-03-2017 | ||
| Great Blue Heron | Ardea herodias | 1 | La Selva Biological Station | 05-03-2017 |
| 3 | Rio Tárcoles | 07-03-2017 | ||
| Great Egret (A.a.egretta) | Ardea alba egretta | 1 | Rio Cuarros | 06-03-2017 |
| 7 | Rio Tárcoles | 07-03-2017 | ||
| 1 | Matapalo | 08-03-2017 | ||
| 40 | La Ensenada | 11-03-2017 | ||
| 10 | Chomes | 12-03-2017 | ||
| Tricolored Heron | Egretta tricolor | 2 | Rio Tárcoles | 07-03-2017 |
| 1 | La Ensenada | 11-03-2017 | ||
| 1 | Chomes | 12-03-2017 | ||
| Little Blue Heron | Egretta caerulea | 1 | La Selva Biological Station | 05-03-2017 |
| 2 | Tárcoles | 07-03-2017 | ||
| 3 | Rio Tárcoles | 07-03-2017 | ||
| 7 | La Ensenada | 11-03-2017 | ||
| 3 | Chomes | 12-03-2017 | ||
| Snowy Egret | Egretta thula | 2 | Tárcoles | 07-03-2017 |
| 6 | Rio Tárcoles | 07-03-2017 | ||
| 15 | La Ensenada | 11-03-2017 | ||
| 10 | Chomes | 12-03-2017 | ||
| Pelicans (Pelecanidae) | ||||
| Brown Pelican | Pelecanus occidentalis | 3 | Tárcoles | 07-03-2017 |
| 17 | Quepos | 08-03-2017 | ||
| Frigatebirds (Fregatidae) | ||||
| Magnificent Frigatebird | Fregata magnificens | 100 | Tárcoles | 07-03-2017 |
| 10 | Quepos | 08-03-2017 | ||
| 6 | La Ensenada | 11-03-2017 | ||
| 5 | Chomes | 12-03-2017 | ||
| Gannets, Boobies (Sulidae) | ||||
| Brown Booby | Sula leucogaster | 1 | Quepos | 08-03-2017 |
| Cormorants, Shags (Phalacrocoracidae) | ||||
| Neotropic Cormorant | Phalacrocorax brasilianus | 1 | Rio Tárcoles | 07-03-2017 |
| 1 | La Ensenada | 11-03-2017 | ||
| Anhingas, Darters (Anhingidae) | ||||
| Anhinga | Anhinga anhinga | 1 | Rio Tárcoles | 07-03-2017 |
| New World Vultures (Cathartidae) | ||||
| Turkey Vulture | Cathartes aura | 3 | San Miguel | 02-03-2017 |
| 2 | La Fortuna | 02-03-2017 | ||
| 5 | Arenal | 03-03-2017 | ||
| 6 | Arenal | 04-03-2017 | ||
| 6 | La Selva Biological Station | 04-03-2017 | ||
| 4 | La Selva Biological Station | 05-03-2017 | ||
| 3 | La Selva Biological Station | 06-03-2017 | ||
| 4 | Tárcoles | 07-03-2017 | ||
| 8 | Rio Tárcoles | 07-03-2017 | ||
| 10 | Matapalo | 08-03-2017 | ||
| 2 | San Gerardo de Dota | 09-03-2017 | ||
| 3 | San Gerardo de Dota | 10-03-2017 | ||
| 3 | La Ensenada | 11-03-2017 | ||
| 8 | La Ensenada | 12-03-2017 | ||
| Black Vulture | Coragyps atratus | 4 | Alajuela - Hotel Aeropuerto | 01-03-2017 |
| 10 | San Miguel | 02-03-2017 | ||
| 8 | La Fortuna | 02-03-2017 | ||
| 2 | Poasito | 02-03-2017 | ||
| 2 | Arenal | 03-03-2017 | ||
| 5 | Arenal | 04-03-2017 | ||
| 5 | La Selva Biological Station | 04-03-2017 | ||
| 2 | La Selva Biological Station | 05-03-2017 | ||
| 2 | La Selva Biological Station | 06-03-2017 | ||
| 2 | Tárcoles | 07-03-2017 | ||
| 5 | Matapalo | 08-03-2017 | ||
| 8 | San Gerardo de Dota | 09-03-2017 | ||
| 4 | San Gerardo de Dota | 10-03-2017 | ||
| 4 | La Ensenada | 11-03-2017 | ||
| 5 | La Ensenada | 12-03-2017 | ||
| Ospreys (Pandionidae) | ||||
| Western Osprey | Pandion haliaetus | 1 | La Selva Biological Station | 04-03-2017 |
| 3 | Rio Tárcoles | 07-03-2017 | ||
| 2 | La Ensenada | 11-03-2017 | ||
| Kites, Hawks and Eagles (Accipitridae) | ||||
| Hook-billed Kite | Chondrohierax uncinatus | 1 | La Selva Biological Station | 05-03-2017 |
| Swallow-tailed Kite | Elanoides forficatus | 6 | San Miguel | 02-03-2017 |
| 2 | Arenal | 03-03-2017 | ||
| 1 | Arenal | 04-03-2017 | ||
| Black Hawk-Eagle | Spizaetus tyrannus | 1 | Arenal | 04-03-2017 |
| Double-toothed Kite | Harpagus bidentatus | 1 | La Selva Biological Station | 05-03-2017 |
| Crane Hawk | Geranospiza caerulescens | 1 | Rio Cuarros | 06-03-2017 |
| Common Black Hawk | Buteogallus anthracinus | 2 | Rio Tárcoles | 07-03-2017 |
| 2 | La Ensenada | 11-03-2017 | ||
| Roadside Hawk | Rupornis magnirostris | 1 | Matapalo | 08-03-2017 |
| Harris's Hawk | Parabuteo unicinctus | 1 | Muelle San Carlos | 04-03-2017 |
| White Hawk | Pseudastur albicollis | 1 | Arenal | 03-03-2017 |
| Semiplumbeous Hawk | Leucopternis semiplumbeus | 1 | La Selva Biological Station | 05-03-2017 |
| Broad-winged Hawk | Buteo platypterus | 2 | San Miguel | 02-03-2017 |
| 1 | La Fortuna | 02-03-2017 | ||
| 4 | Arenal | 03-03-2017 | ||
| 1 | La Selva Biological Station | 05-03-2017 | ||
| 1 | La Selva Biological Station | 06-03-2017 | ||
| Zone-tailed Hawk | Buteo albonotatus | 1 | Rio Tárcoles | 07-03-2017 |
| Sunbittern (Eurypygidae) | ||||
| Sunbittern | Eurypyga helias | 2 | La Selva Biological Station | 05-03-2017 |
| Rails, Crakes and Coots (Rallidae) | ||||
| Rufous-naped Wood Rail (A.a.plumbeicollis) | Aramides albiventris plumbeicollis | 1 | Cope's Place | 06-03-2017 |
| Purple Gallinule | Porphyrio martinica | 1 | Rio Tárcoles | 07-03-2017 |
| Stone-curlews, Thick-knees (Burhinidae) | ||||
| Double-striped Thick-knee | Burhinus bistriatus | 2 | Jacó | 08-03-2017 |
| 1 | La Ensenada | 12-03-2017 | ||
| Stilts, Avocets (Recurvirostridae) | ||||
| Black-necked Stilt | Himantopus mexicanus | 3 | Rio Tárcoles | 07-03-2017 |
| 70 | La Ensenada | 11-03-2017 | ||
| 15 | Chomes | 12-03-2017 | ||
| Plovers (Charadriidae) | ||||
| Southern Lapwing | Vanellus chilensis | 5 | Rio Tárcoles | 07-03-2017 |
| Grey Plover | Pluvialis squatarola | 4 | La Ensenada | 11-03-2017 |
| 1 | Chomes | 12-03-2017 | ||
| Semipalmated Plover | Charadrius semipalmatus | 3 | Rio Tárcoles | 07-03-2017 |
| 50 | La Ensenada | 11-03-2017 | ||
| 10 | Chomes | 12-03-2017 | ||
| Wilson's Plover | Charadrius wilsonia | 1 | Chomes | 12-03-2017 |
| Jacanas (Jacanidae) | ||||
| Northern Jacana | Jacana spinosa | 2 | Rio Tárcoles | 07-03-2017 |
| 1 | Matapalo | 08-03-2017 | ||
| Sandpipers, Snipes (Scolopacidae) | ||||
| Short-billed Dowitcher | Limnodromus griseus | 1 | La Ensenada | 11-03-2017 |
| Whimbrel (N.p.rufiventris) | Numenius phaeopus rufiventris | 6 | Rio Tárcoles | 07-03-2017 |
| 15 | La Ensenada | 11-03-2017 | ||
| 2 | Chomes | 12-03-2017 | ||
| Greater Yellowlegs | Tringa melanoleuca | 1 | La Ensenada | 11-03-2017 |
| Lesser Yellowlegs | Tringa flavipes | 3 | La Ensenada | 11-03-2017 |
| 1 | Chomes | 12-03-2017 | ||
| Solitary Sandpiper | Tringa solitaria | 2 | La Ensenada | 11-03-2017 |
| Willet | Tringa semipalmata | 1 | Rio Tárcoles | 07-03-2017 |
| 2 | La Ensenada | 11-03-2017 | ||
| 3 | Chomes | 12-03-2017 | ||
| Spotted Sandpiper | Actitis macularius | 1 | La Selva Biological Station | 05-03-2017 |
| 2 | Tárcoles | 07-03-2017 | ||
| 7 | Rio Tárcoles | 07-03-2017 | ||
| 1 | Matapalo | 08-03-2017 | ||
| 6 | La Ensenada | 11-03-2017 | ||
| 4 | Chomes | 12-03-2017 | ||
| Ruddy Turnstone | Arenaria interpres | 14 | La Ensenada | 11-03-2017 |
| Least Sandpiper | Calidris minutilla | 4 | Rio Tárcoles | 07-03-2017 |
| 10 | La Ensenada | 11-03-2017 | ||
| 30 | Chomes | 12-03-2017 | ||
| Semipalmated Sandpiper | Calidris pusilla | 3 | Rio Tárcoles | 07-03-2017 |
| Western Sandpiper | Calidris mauri | 50 | La Ensenada | 11-03-2017 |
| Gulls, Terns and Skimmers (Laridae) | ||||
| Laughing Gull | Leucophaeus atricilla | 50 | Mata de Limón | 10-03-2017 |
| 60 | La Ensenada | 11-03-2017 | ||
| Royal Tern | Thalasseus maximus | 8 | Tárcoles | 07-03-2017 |
| 100 | La Ensenada | 11-03-2017 | ||
| Sandwich Tern | Thalasseus sandvicensis | 1 | La Ensenada | 11-03-2017 |
| Pigeons, Doves (Columbidae) | ||||
| Rock Dove | Columba livia | 1 | Chiles | 04-03-2017 |
| 5 | La Ensenada | 10-03-2017 | ||
| Pale-vented Pigeon | Patagioenas cayennensis | 10 | Cope's Place | 06-03-2017 |
| 2 | Quepos | 08-03-2017 | ||
| Red-billed Pigeon | Patagioenas flavirostris | 1 | Alajuela - Hotel Aeropuerto | 01-03-2017 |
| 3 | La Fortuna | 02-03-2017 | ||
| 1 | Arenal | 03-03-2017 | ||
| 2 | Arenal | 04-03-2017 | ||
| Short-billed Pigeon | Patagioenas nigrirostris | 1 | La Selva Biological Station | 05-03-2017 |
| 1 | Punta Leona | 07-03-2017 | ||
| Inca Dove | Columbina inca | 4 | Alajuela - Hotel Aeropuerto | 01-03-2017 |
| 2 | La Fortuna | 02-03-2017 | ||
| 1 | Rio Cuarros | 06-03-2017 | ||
| 2 | La Ensenada | 10-03-2017 | ||
| 10 | La Ensenada | 11-03-2017 | ||
| 2 | La Ensenada | 12-03-2017 | ||
| Common Ground Dove | Columbina passerina | 2 | San Isidro de El General - Rio General | 08-03-2017 |
| 8 | La Ensenada | 12-03-2017 | ||
| Ruddy Ground Dove | Columbina talpacoti | 2 | Muelle San Carlos | 04-03-2017 |
| 2 | Rio Tárcoles | 07-03-2017 | ||
| 2 | Quepos | 08-03-2017 | ||
| 2 | San Isidro de El General - Rio General | 08-03-2017 | ||
| 2 | La Ensenada | 10-03-2017 | ||
| 8 | La Ensenada | 11-03-2017 | ||
| 2 | La Ensenada | 12-03-2017 | ||
| Olive-backed Quail-Dove | Leptotrygon veraguensis | 1 | La Selva Biological Station | 05-03-2017 |
| White-tipped Dove | Leptotila verreauxi | 1 | La Selva Biological Station | 05-03-2017 |
| 1 | Punta Leona | 07-03-2017 | ||
| Buff-fronted Quail-Dove | Zentrygon costaricensis | 1 | San Gerardo de Dota | 09-03-2017 |
| White-winged Dove | Zenaida asiatica | 10 | Alajuela - Hotel Aeropuerto | 01-03-2017 |
| 2 | Alajuela - Hotel Aeropuerto | 02-03-2017 | ||
| 4 | Rio Cuarros | 06-03-2017 | ||
| 1 | Punta Leona | 07-03-2017 | ||
| 12 | La Ensenada | 10-03-2017 | ||
| 2 | La Ensenada | 11-03-2017 | ||
| 2 | Alajuela - Hotel Aeropuerto | 12-03-2017 | ||
| Cuckoos (Cuculidae) | ||||
| Groove-billed Ani | Crotophaga sulcirostris | 4 | La Selva Biological Station | 04-03-2017 |
| 1 | La Selva Biological Station | 06-03-2017 | ||
| 18 | La Ensenada | 11-03-2017 | ||
| 7 | La Ensenada | 12-03-2017 | ||
| Squirrel Cuckoo | Piaya cayana | 1 | La Selva Biological Station | 04-03-2017 |
| 1 | La Selva Biological Station | 05-03-2017 | ||
| 1 | La Selva Biological Station | 06-03-2017 | ||
| 1 | La Ensenada | 11-03-2017 | ||
| 1 | La Ensenada | 12-03-2017 | ||
| Owls (Strigidae) | ||||
| Pacific Screech Owl | Megascops cooperi | 1 | La Ensenada | 11-03-2017 |
| Vermiculated Screech Owl | Megascops vermiculatus | 1 | La Selva Biological Station | 05-03-2017 |
| Crested Owl | Lophostrix cristata | 1 | Cope's Place | 06-03-2017 |
| Spectacled Owl | Pulsatrix perspicillata | 2 | Cope's Place | 06-03-2017 |
| Ferruginous Pygmy Owl | Glaucidium brasilianum | 1 | Punta Leona | 07-03-2017 |
| 1 | Rio Tárcoles | 07-03-2017 | ||
| 1 | Matapalo | 08-03-2017 | ||
| 1 | La Ensenada | 10-03-2017 | ||
| 1 | La Ensenada | 11-03-2017 | ||
| Potoos (Nyctibiidae) | ||||
| Great Potoo | Nyctibius grandis | 1 | Arenal | 04-03-2017 |
| Nightjars (Caprimulgidae) | ||||
| Pauraque | Nyctidromus albicollis | 3 | La Selva Biological Station | 04-03-2017 |
| 3 | La Selva Biological Station | 05-03-2017 | ||
| Swifts (Apodidae) | ||||
| White-collared Swift | Streptoprocne zonaris | 5 | Arenal | 03-03-2017 |
| 8 | San Gerardo de Dota | 09-03-2017 | ||
| Vaux's Swift | Chaetura vauxi | 5 | La Selva Biological Station | 05-03-2017 |
| Lesser Swallow-tailed Swift | Panyptila cayennensis | 2 | La Selva Biological Station | 05-03-2017 |
| Hummingbirds (Trochilidae) | ||||
| Long-billed Hermit | Phaethornis longirostris | 1 | Cope's Place | 06-03-2017 |
| Stripe-throated Hermit | Phaethornis striigularis | 1 | Rio Cuarros | 06-03-2017 |
| Scaly-breasted Hummingbird | Phaeochroa cuvierii | 1 | Arenal | 03-03-2017 |
| 1 | Arenal | 04-03-2017 | ||
| 1 | Rio Cuarros | 06-03-2017 | ||
| 1 | Punta Leona | 08-03-2017 | ||
| 1 | La Ensenada | 11-03-2017 | ||
| Violet Sabrewing | Campylopterus hemileucurus | 1 | Cinchona | 02-03-2017 |
| 1 | Poasito | 02-03-2017 | ||
| White-necked Jacobin | Florisuga mellivora | 1 | Arenal | 03-03-2017 |
| 1 | Arenal | 04-03-2017 | ||
| 2 | Cope's Place | 06-03-2017 | ||
| Lesser Violetear (C.c.cabanidis) | Colibri cyanotus cabanidis | 1 | Poasito | 02-03-2017 |
| 1 | Cerro de la Muerte - Restaurante La Georgina | 08-03-2017 | ||
| 1 | San Gerardo de Dota | 09-03-2017 | ||
| 1 | San Gerardo de Dota | 10-03-2017 | ||
| Violet-headed Hummingbird | Klais guimeti | 1 | Arenal | 03-03-2017 |
| 1 | Arenal | 04-03-2017 | ||
| 1 | El Tapir | 06-03-2017 | ||
| Black-crested Coquette | Lophornis helenae | 1 | Arenal | 03-03-2017 |
| 1 | Arenal | 04-03-2017 | ||
| Green Thorntail | Discosura conversii | 2 | Cinchona | 02-03-2017 |
| 1 | Arenal | 03-03-2017 | ||
| 1 | Arenal | 04-03-2017 | ||
| 2 | El Tapir | 06-03-2017 | ||
| Canivet's Emerald | Chlorostilbon canivetii | 1 | La Ensenada | 11-03-2017 |
| Fiery-throated Hummingbird | Panterpe insignis | 1 | Cerro de la Muerte - Restaurante La Georgina | 08-03-2017 |
| 1 | San Gerardo de Dota | 09-03-2017 | ||
| 1 | San Gerardo de Dota | 10-03-2017 | ||
| Coppery-headed Emerald (Endemic) | Elvira cupreiceps | 1 | Cinchona | 02-03-2017 |
| Stripe-tailed Hummingbird | Eupherusa eximia | 1 | Poasito | 02-03-2017 |
| 1 | San Gerardo de Dota | 09-03-2017 | ||
| 1 | San Gerardo de Dota | 10-03-2017 | ||
| Crowned Woodnymph | Thalurania colombica | 1 | Arenal | 03-03-2017 |
| 1 | Cope's Place | 06-03-2017 | ||
| Cinnamon Hummingbird | Amazilia rutila | 1 | La Ensenada | 11-03-2017 |
| Rufous-tailed Hummingbird | Amazilia tzacatl | 4 | Cinchona | 02-03-2017 |
| 1 | Alajuela - Hotel Aeropuerto | 02-03-2017 | ||
| 3 | Arenal | 03-03-2017 | ||
| 2 | Arenal | 04-03-2017 | ||
| 2 | La Selva Biological Station | 05-03-2017 | ||
| 1 | El Tapir | 06-03-2017 | ||
| 1 | Rio Cuarros | 06-03-2017 | ||
| 1 | Cope's Place | 06-03-2017 | ||
| 2 | Rio Tárcoles | 07-03-2017 | ||
| 1 | Punta Leona | 08-03-2017 | ||
| Blue-vented Hummingbird | Amazilia hoffmanni | 1 | Rio Cuarros | 06-03-2017 |
| 1 | Punta Leona | 08-03-2017 | ||
| Snowcap | Microchera albocoronata | 1 | El Tapir | 06-03-2017 |
| Bronze-tailed Plumeleteer | Chalybura urochrysia | 1 | Cope's Place | 06-03-2017 |
| White-bellied Mountaingem | Lampornis hemileucus | 1 | Cinchona | 02-03-2017 |
| Purple-throated Mountaingem | Lampornis calolaemus | 1 | Poasito | 02-03-2017 |
| White-throated Mountaingem | Lampornis castaneoventris | 1 | Cerro de la Muerte - Restaurante La Georgina | 08-03-2017 |
| 2 | San Gerardo de Dota | 09-03-2017 | ||
| Green-crowned Brilliant | Heliodoxa jacula | 3 | Cinchona | 02-03-2017 |
| 2 | Poasito | 02-03-2017 | ||
| Admirable Hummingbird | Eugenes spectabilis | 1 | Poasito | 02-03-2017 |
| 1 | Arenal | 03-03-2017 | ||
| 1 | Cerro de la Muerte - Restaurante La Georgina | 08-03-2017 | ||
| 2 | San Gerardo de Dota | 09-03-2017 | ||
| 1 | San Gerardo de Dota | 09-03-2017 | ||
| 1 | San Gerardo de Dota | 10-03-2017 | ||
| Purple-crowned Fairy | Heliothryx barroti | 1 | Arenal | 03-03-2017 |
| 1 | Arenal | 04-03-2017 | ||
| Magenta-throated Woodstar | Calliphlox bryantae | 1 | Poasito | 02-03-2017 |
| Ruby-throated Hummingbird | Archilochus colubris | 1 | La Ensenada | 11-03-2017 |
| 1 | La Ensenada | 12-03-2017 | ||
| Volcano Hummingbird | Selasphorus flammula | 1 | Cerro de la Muerte - Restaurante La Georgina | 08-03-2017 |
| 4 | San Gerardo de Dota | 09-03-2017 | ||
| 2 | San Gerardo de Dota | 10-03-2017 | ||
| Scintillant Hummingbird | Selasphorus scintilla | 1 | San Gerardo de Dota | 09-03-2017 |
| 1 | San Gerardo de Dota | 10-03-2017 | ||
| Trogons (Trogonidae) | ||||
| Resplendent Quetzal | Pharomachrus mocinno | 2 | San Gerardo de Dota | 09-03-2017 |
| 5 | San Gerardo de Dota | 10-03-2017 | ||
| Slaty-tailed Trogon | Trogon massena | 1 | Arenal | 03-03-2017 |
| 1 | La Selva Biological Station | 05-03-2017 | ||
| 1 | Punta Leona | 08-03-2017 | ||
| Black-headed Trogon | Trogon melanocephalus | 1 | Rio Cuarros | 06-03-2017 |
| 3 | La Ensenada | 11-03-2017 | ||
| 2 | La Ensenada | 12-03-2017 | ||
| Gartered Trogon | Trogon caligatus | 1 | Arenal | 03-03-2017 |
| 1 | Arenal | 04-03-2017 | ||
| 1 | La Selva Biological Station | 05-03-2017 | ||
| 1 | Parque Nacional de Carara | 07-03-2017 | ||
| 3 | La Ensenada | 11-03-2017 | ||
| Black-throated Trogon | Trogon rufus | 2 | La Selva Biological Station | 05-03-2017 |
| Kingfishers (Alcedinidae) | ||||
| American Pygmy Kingfisher | Chloroceryle aenea | 1 | Rio Tárcoles | 07-03-2017 |
| Green Kingfisher | Chloroceryle americana | 1 | Arenal | 03-03-2017 |
| Amazon Kingfisher | Chloroceryle amazona | 1 | Arenal | 03-03-2017 |
| Ringed Kingfisher | Megaceryle torquata | 2 | La Ensenada | 11-03-2017 |
| Motmots (Momotidae) | ||||
| Lesson's Motmot | Momotus lessonii | 2 | Alajuela - Hotel Aeropuerto | 01-03-2017 |
| 1 | Alajuela - Hotel Aeropuerto | 02-03-2017 | ||
| 1 | Punta Leona | 07-03-2017 | ||
| 2 | Alajuela - Hotel Aeropuerto | 12-03-2017 | ||
| Rufous Motmot | Baryphthengus martii | 2 | La Selva Biological Station | 05-03-2017 |
| Keel-billed Motmot | Electron carinatum | 1 | Arenal | 03-03-2017 |
| 1 | Arenal | 04-03-2017 | ||
| Broad-billed Motmot | Electron platyrhynchum | 2 | Arenal | 04-03-2017 |
| 2 | La Selva Biological Station | 05-03-2017 | ||
| Turquoise-browed Motmot | Eumomota superciliosa | 1 | Rio Cuarros | 06-03-2017 |
| 1 | Punta Leona | 08-03-2017 | ||
| 1 | La Ensenada | 11-03-2017 | ||
| 1 | La Ensenada | 12-03-2017 | ||
| Jacamars (Galbulidae) | ||||
| Rufous-tailed Jacamar | Galbula ruficauda | 2 | Arenal | 03-03-2017 |
| 2 | La Selva Biological Station | 04-03-2017 | ||
| Puffbirds (Bucconidae) | ||||
| White-necked Puffbird | Notharchus hyperrhynchus | 1 | La Selva Biological Station | 05-03-2017 |
| 1 | La Ensenada | 12-03-2017 | ||
| White-whiskered Puffbird | Malacoptila panamensis | 1 | La Selva Biological Station | 05-03-2017 |
| New World Barbets (Capitonidae) | ||||
| Red-headed Barbet | Eubucco bourcierii | 1 | Cinchona | 02-03-2017 |
| Toucan Barbets (Semnornithidae) | ||||
| Prong-billed Barbet | Semnornis frantzii | 1 | Cinchona | 02-03-2017 |
| 1 | Poasito | 02-03-2017 | ||
| 3 | Arenal | 03-03-2017 | ||
| 1 | Arenal | 04-03-2017 | ||
| Toucans (Ramphastidae) | ||||
| Emerald Toucanet | Aulacorhynchus prasinus | 2 | Cinchona | 02-03-2017 |
| 1 | San Gerardo de Dota | 09-03-2017 | ||
| Collared Aracari | Pteroglossus torquatus | 2 | La Selva Biological Station | 05-03-2017 |
| 2 | Cope's Place | 06-03-2017 | ||
| Fiery-billed Aracari | Pteroglossus frantzii | 1 | Punta Leona | 08-03-2017 |
| Keel-billed Toucan | Ramphastos sulfuratus | 1 | Arenal | 03-03-2017 |
| Yellow-throated Toucan | Ramphastos ambiguus | 1 | Arenal | 03-03-2017 |
| 2 | Arenal | 04-03-2017 | ||
| 4 | La Selva Biological Station | 04-03-2017 | ||
| 3 | La Selva Biological Station | 05-03-2017 | ||
| 1 | Punta Leona | 07-03-2017 | ||
| Woodpeckers (Picidae) | ||||
| Acorn Woodpecker | Melanerpes formicivorus | 1 | San Gerardo de Dota | 09-03-2017 |
| 1 | San Gerardo de Dota | 09-03-2017 | ||
| 1 | San Gerardo de Dota | 10-03-2017 | ||
| Golden-naped Woodpecker | Melanerpes chrysauchen | 2 | Punta Leona | 08-03-2017 |
| Black-cheeked Woodpecker | Melanerpes pucherani | 2 | La Fortuna | 02-03-2017 |
| 1 | Arenal | 03-03-2017 | ||
| 1 | Arenal | 04-03-2017 | ||
| 1 | La Selva Biological Station | 05-03-2017 | ||
| 1 | Cope's Place | 06-03-2017 | ||
| Red-crowned Woodpecker | Melanerpes rubricapillus | 1 | Quepos | 08-03-2017 |
| 1 | Matapalo | 08-03-2017 | ||
| 1 | San Isidro de El General - Rio General | 08-03-2017 | ||
| Hoffmann's Woodpecker | Melanerpes hoffmannii | 1 | Alajuela - Hotel Aeropuerto | 01-03-2017 |
| 1 | Alajuela - Hotel Aeropuerto | 02-03-2017 | ||
| 1 | Punta Leona | 07-03-2017 | ||
| 1 | Rio Tárcoles | 07-03-2017 | ||
| 2 | Punta Leona | 08-03-2017 | ||
| 1 | La Ensenada | 10-03-2017 | ||
| 5 | La Ensenada | 11-03-2017 | ||
| 2 | La Ensenada | 12-03-2017 | ||
| 1 | Alajuela - Hotel Aeropuerto | 12-03-2017 | ||
| Rufous-winged Woodpecker | Piculus simplex | 1 | La Selva Biological Station | 05-03-2017 |
| Golden-olive Woodpecker | Colaptes rubiginosus | 1 | La Fortuna | 02-03-2017 |
| Chestnut-colored Woodpecker | Celeus castaneus | 1 | La Selva Biological Station | 05-03-2017 |
| Lineated Woodpecker | Dryocopus lineatus | 1 | La Ensenada | 11-03-2017 |
| Pale-billed Woodpecker | Campephilus guatemalensis | 2 | Arenal | 03-03-2017 |
| 2 | Arenal | 04-03-2017 | ||
| 3 | La Selva Biological Station | 05-03-2017 | ||
| 1 | Punta Leona | 07-03-2017 | ||
| 1 | Parque Nacional de Carara | 07-03-2017 | ||
| Caracaras, Falcons (Falconidae) | ||||
| Northern Crested Caracara | Caracara cheriway | 1 | La Selva Biological Station | 04-03-2017 |
| 1 | La Selva Biological Station | 05-03-2017 | ||
| 1 | Matapalo | 08-03-2017 | ||
| 2 | La Ensenada | 11-03-2017 | ||
| Yellow-headed Caracara | Milvago chimachima | 2 | Tárcoles | 07-03-2017 |
| 1 | La Ensenada | 11-03-2017 | ||
| Laughing Falcon | Herpetotheres cachinnans | 1 | La Selva Biological Station | 05-03-2017 |
| Bat Falcon | Falco rufigularis | 2 | La Selva Biological Station | 04-03-2017 |
| Peregrine Falcon | Falco peregrinus | 1 | Rio Tárcoles | 07-03-2017 |
| African & New World Parrots (Psittacidae) | ||||
| Barred Parakeet | Bolborhynchus lineola | 20 | San Gerardo de Dota | 10-03-2017 |
| Orange-chinned Parakeet | Brotogeris jugularis | 4 | Punta Leona | 07-03-2017 |
| 1 | San Gerardo de Dota | 10-03-2017 | ||
| White-crowned Parrot | Pionus senilis | 1 | La Selva Biological Station | 05-03-2017 |
| 1 | Cope's Place | 06-03-2017 | ||
| White-fronted Amazon | Amazona albifrons | 2 | La Ensenada | 10-03-2017 |
| Red-lored Amazon | Amazona autumnalis | 2 | Arenal | 04-03-2017 |
| 4 | La Selva Biological Station | 04-03-2017 | ||
| Sulphur-winged Parakeet | Pyrrhura hoffmanni | 9 | San Gerardo de Dota | 09-03-2017 |
| Olive-throated Parakeet | Eupsittula nana | 2 | La Selva Biological Station | 04-03-2017 |
| Orange-fronted Parakeet | Eupsittula canicularis | 4 | La Ensenada | 11-03-2017 |
| 10 | La Ensenada | 12-03-2017 | ||
| Great Green Macaw | Ara ambiguus | 2 | La Selva Biological Station | 04-03-2017 |
| Scarlet Macaw | Ara macao | 2 | La Fortuna | 02-03-2017 |
| 1 | Punta Leona | 06-03-2017 | ||
| 8 | Punta Leona | 07-03-2017 | ||
| 8 | Parque Nacional de Carara | 07-03-2017 | ||
| 2 | Rio Tárcoles | 07-03-2017 | ||
| 12 | Punta Leona | 08-03-2017 | ||
| Finsch's Parakeet | Psittacara finschi | 20 | La Fortuna | 02-03-2017 |
| 6 | La Selva Biological Station | 04-03-2017 | ||
| Ovenbirds (Furnariidae) | ||||
| Red-faced Spinetail | Cranioleuca erythrops | 1 | La Fortuna | 02-03-2017 |
| Spotted Barbtail | Premnoplex brunnescens | 1 | San Gerardo de Dota | 09-03-2017 |
| Scaly-throated Leaftosser | Sclerurus guatemalensis | 1 | Parque Nacional de Carara | 07-03-2017 |
| Plain Xenops | Xenops minutus | 1 | San Miguel | 02-03-2017 |
| Wedge-billed Woodcreeper | Glyphorynchus spirurus | 2 | Arenal | 03-03-2017 |
| 1 | La Selva Biological Station | 05-03-2017 | ||
| Cocoa Woodcreeper | Xiphorhynchus susurrans | 1 | La Fortuna | 02-03-2017 |
| 1 | Arenal | 04-03-2017 | ||
| Black-striped Woodcreeper | Xiphorhynchus lachrymosus | 1 | Arenal | 03-03-2017 |
| 1 | La Selva Biological Station | 04-03-2017 | ||
| 1 | La Selva Biological Station | 05-03-2017 | ||
| Streak-headed Woodcreeper |
Lepidocolaptes souleyetii |
1 1 |
Arenal La Selva Biological Station |
03-03-2017 04-03-2017 |
| 1 | Rio Tárcoles | 07-03-2017 | ||
| 2 | San Isidro de El General - Rio General | 08-03-2017 | ||
| Antbirds (Thamnophilidae) | ||||
| Fasciated Antshrike | Cymbilaimus lineatus | 1 | La Selva Biological Station | 05-03-2017 |
| Barred Antshrike | Thamnophilus doliatus | 2 | Rio Cuarros | 06-03-2017 |
| 2 | Parque Nacional de Carara | 07-03-2017 | ||
| Black-hooded Antshrike | Thamnophilus bridgesi | 2 | Parque Nacional de Carara | 07-03-2017 |
| Russet Antshrike | Thamnistes anabatinus | 1 | Arenal | 03-03-2017 |
| Slaty Antwren | Myrmotherula schisticolor | 1 | Arenal | 04-03-2017 |
| Dot-winged Antwren | Microrhopias quixensis | 1 | Parque Nacional de Carara | 07-03-2017 |
| Dusky Antbird | Cercomacra tyrannina | 1 | Arenal | 03-03-2017 |
| 1 | Parque Nacional de Carara | 07-03-2017 | ||
| Bare-crowned Antbird | Gymnocichla nudiceps | 1 | Arenal | 03-03-2017 |
| Chestnut-backed Antbird | Myrmeciza exsul | 1 | Parque Nacional de Carara | 07-03-2017 |
| 3 | Punta Leona | 08-03-2017 | ||
| Dull-mantled Antbird | Myrmeciza laemosticta | 1 | Arenal | 04-03-2017 |
| Bicolored Antbird (G.b.olivascens) | Gymnopithys bicolor olivascens | 1 | Parque Nacional de Carara | 07-03-2017 |
| Spotted Antbird | Hylophylax naevioides | 2 | Arenal | 03-03-2017 |
| Antthrushes (Formicariidae) | ||||
| Black-faced Antthrush | Formicarius analis | 1 | Parque Nacional de Carara | 07-03-2017 |
| Antpittas (Grallariidae) | ||||
| Thicket Antpitta | Hylopezus dives | 1 | Cope's Place | 06-03-2017 |
| Tyrant Flycatchers (Tyrannidae) | ||||
| Greenish Elaenia | Myiopagis viridicata | 1 | Parque Nacional de Carara | 07-03-2017 |
| Yellow-bellied Elaenia | Elaenia flavogaster | 1 | La Fortuna | 02-03-2017 |
| Mountain Elaenia | Elaenia frantzii | 1 | Poasito | 02-03-2017 |
| 1 | San Gerardo de Dota | 09-03-2017 | ||
| 1 | San Gerardo de Dota | 10-03-2017 | ||
| Northern Beardless Tyrannulet | Camptostoma imberbe | 1 | Mata de Limón | 12-03-2017 |
| Yellow Tyrannulet | Capsiempis flaveola | 1 | Arenal | 03-03-2017 |
| Olive-striped Flycatcher | Mionectes olivaceus | 1 | Arenal | 03-03-2017 |
| Scale-crested Pygmy Tyrant | Lophotriccus pileatus | 1 | Arenal | 03-03-2017 |
| Common Tody-Flycatcher | Todirostrum cinereum | 1 | Arenal | 03-03-2017 |
| 2 | Punta Leona | 08-03-2017 | ||
| Yellow-olive Flatbill | Tolmomyias sulphurescens | 1 | La Ensenada | 11-03-2017 |
| 1 | La Ensenada | 12-03-2017 | ||
| Black Phoebe | Sayornis nigricans | 1 | San Miguel | 02-03-2017 |
| 2 | Arenal | 03-03-2017 | ||
| Northern Tufted Flycatcher | Mitrephanes phaeocercus | 1 | San Miguel | 02-03-2017 |
| 1 | San Gerardo de Dota | 09-03-2017 | ||
| 1 | San Gerardo de Dota | 10-03-2017 | ||
| Olive-sided Flycatcher | Contopus cooperi | 1 | Arenal | 04-03-2017 |
| Dark Pewee | Contopus lugubris | 1 | San Gerardo de Dota | 09-03-2017 |
| Eastern Wood Pewee | Contopus virens | 1 | Muelle San Carlos | 04-03-2017 |
| Tropical Pewee | Contopus cinereus | 2 | Arenal | 03-03-2017 |
| Yellowish Flycatcher | Empidonax flavescens | 1 | San Gerardo de Dota | 09-03-2017 |
| 2 | San Gerardo de Dota | 10-03-2017 | ||
| Black-capped Flycatcher | Empidonax atriceps | 1 | San Gerardo de Dota | 10-03-2017 |
| Long-tailed Tyrant | Colonia colonus | 1 | Arenal | 03-03-2017 |
| 1 | Arenal | 04-03-2017 | ||
| 3 | La Selva Biological Station | 05-03-2017 | ||
| Piratic Flycatcher | Legatus leucophaius | 3 | Cope's Place | 06-03-2017 |
| Social Flycatcher | Myiozetetes similis | 1 | La Fortuna | 02-03-2017 |
| 1 | Arenal | 03-03-2017 | ||
| 1 | Arenal | 04-03-2017 | ||
| 1 | La Selva Biological Station | 05-03-2017 | ||
| 2 | Rio Cuarros | 06-03-2017 | ||
| 2 | Cope's Place | 06-03-2017 | ||
| 2 | Punta Leona | 07-03-2017 | ||
| Grey-capped Flycatcher | Myiozetetes granadensis | 1 | Arenal | 03-03-2017 |
| 1 | Arenal | 04-03-2017 | ||
| 1 | La Selva Biological Station | 05-03-2017 | ||
| Great Kiskadee | Pitangus sulphuratus | 3 | La Fortuna | 02-03-2017 |
| 3 | Alajuela - Hotel Aeropuerto | 02-03-2017 | ||
| 5 | Arenal | 03-03-2017 | ||
| 5 | Arenal | 04-03-2017 | ||
| 2 | La Selva Biological Station | 04-03-2017 | ||
| 3 | La Selva Biological Station | 05-03-2017 | ||
| 2 | La Selva Biological Station | 06-03-2017 | ||
| 3 | Cope's Place | 06-03-2017 | ||
| 4 | Punta Leona | 07-03-2017 | ||
| 2 | Quepos | 08-03-2017 | ||
| 6 | Punta Leona | 08-03-2017 | ||
| 2 | La Ensenada | 10-03-2017 | ||
| 6 | La Ensenada | 11-03-2017 | ||
| 6 | La Ensenada | 12-03-2017 | ||
| 4 | Alajuela - Hotel Aeropuerto | 12-03-2017 | ||
| Sulphur-bellied Flycatcher | Myiodynastes luteiventris | 1 | La Ensenada | 11-03-2017 |
| 1 | La Ensenada | 12-03-2017 | ||
| Streaked Flycatcher | Myiodynastes maculatus | 1 | Punta Leona | 07-03-2017 |
| 2 | Parque Nacional de Carara | 07-03-2017 | ||
| 1 | Punta Leona | 08-03-2017 | ||
| 1 | Mata de Limón | 12-03-2017 | ||
| Boat-billed Flycatcher | Megarynchus pitangua | 2 | Arenal | 03-03-2017 |
| Tropical Kingbird | Tyrannus melancholicus | 1 | Alajuela - Hotel Aeropuerto | 01-03-2017 |
| 2 | La Fortuna | 02-03-2017 | ||
| 2 | Alajuela - Hotel Aeropuerto | 02-03-2017 | ||
| 1 | Arenal | 03-03-2017 | ||
| 1 | Arenal | 04-03-2017 | ||
| 1 | Rio Cuarros | 06-03-2017 | ||
| 1 | Rio Tárcoles | 07-03-2017 | ||
| 1 | Quepos | 08-03-2017 | ||
| 1 | La Ensenada | 10-03-2017 | ||
| 2 | La Ensenada | 11-03-2017 | ||
| 2 | La Ensenada | 12-03-2017 | ||
| Scissor-tailed Flycatcher | Tyrannus forficatus | 1 | Matapalo | 08-03-2017 |
| 1 | La Ensenada | 11-03-2017 | ||
| 1 | La Ensenada | 12-03-2017 | ||
| Fork-tailed Flycatcher | Tyrannus savana | 1 | San Isidro de El General - Rio General | 08-03-2017 |
| Rufous Mourner | Rhytipterna holerythra | 1 | La Selva Biological Station | 05-03-2017 |
| Dusky-capped Flycatcher | Myiarchus tuberculifer | 1 | Arenal | 03-03-2017 |
| 1 | Rio Tárcoles | 07-03-2017 | ||
| 1 | Punta Leona | 08-03-2017 | ||
| Nutting's Flycatcher | Myiarchus nuttingi | 1 | Mata de Limón | 12-03-2017 |
| Great Crested Flycatcher | Myiarchus crinitus | 1 | Rio Tárcoles | 07-03-2017 |
| Brown-crested Flycatcher | Myiarchus tyrannulus | 1 | Punta Leona | 08-03-2017 |
| 1 | La Ensenada | 11-03-2017 | ||
| 1 | La Ensenada | 12-03-2017 | ||
| Bright-rumped Attila | Attila spadiceus | 2 | La Selva Biological Station | 05-03-2017 |
| Cotingas (Cotingidae) | ||||
| Turquoise Cotinga | Cotinga ridgwayi | 1 | San Isidro de El General - Rio General | 08-03-2017 |
| Purple-throated Fruitcrow | Querula purpurata | 6 | La Selva Biological Station | 05-03-2017 |
| Manakins (Pipridae) | ||||
| Long-tailed Manakin | Chiroxiphia linearis | 1 | Rio Cuarros | 06-03-2017 |
| White-ruffed Manakin | Corapipo altera | 1 | Arenal | 03-03-2017 |
| White-collared Manakin | Manacus candei | 1 | Arenal | 03-03-2017 |
| 3 | La Selva Biological Station | 05-03-2017 | ||
| Orange-collared Manakin | Manacus aurantiacus | 1 | Parque Nacional de Carara | 07-03-2017 |
| Red-capped Manakin | Ceratopipra mentalis | 2 | Parque Nacional de Carara | 07-03-2017 |
| Tityras, Becards (Tityridae) | ||||
| Northern Royal Flycatcher (O.m.mexicanus) | Onychorhynchus mexicanus mexicanus | 1 | Parque Nacional de Carara | 07-03-2017 |
| Black-crowned Tityra | Tityra inquisitor | 3 | La Ensenada | 12-03-2017 |
| Masked Tityra | Tityra semifasciata | 1 | Arenal | 03-03-2017 |
| 2 | La Selva Biological Station | 05-03-2017 | ||
| 1 | La Selva Biological Station | 06-03-2017 | ||
| Northern Schiffornis | Schiffornis veraepacis | 1 | Parque Nacional de Carara | 07-03-2017 |
| Cinnamon Becard | Pachyramphus cinnamomeus | 2 | Arenal | 03-03-2017 |
| 2 | La Selva Biological Station | 05-03-2017 | ||
| Rose-throated Becard | Pachyramphus aglaiae | 1 | Rio Tárcoles | 07-03-2017 |
| 1 | Punta Leona | 08-03-2017 | ||
| 1 | La Ensenada | 12-03-2017 | ||
| Vireos, Greenlets (Vireonidae) | ||||
| Mangrove Vireo | Vireo pallens | 1 | Mata de Limón | 12-03-2017 |
| Yellow-throated Vireo | Vireo flavifrons | 1 | La Ensenada | 12-03-2017 |
| 1 | Alajuela - Hotel Aeropuerto | 12-03-2017 | ||
| Yellow-green Vireo | Vireo flavoviridis | 1 | La Ensenada | 12-03-2017 |
| Lesser Greenlet | Hylophilus decurtatus | 1 | Arenal | 03-03-2017 |
| 1 | Parque Nacional de Carara | 07-03-2017 | ||
| Crows, Jays (Corvidae) | ||||
| Brown Jay | Psilorhinus morio | 4 | Arenal | 03-03-2017 |
| 6 | Arenal | 04-03-2017 | ||
| 2 | Punta Leona | 07-03-2017 | ||
| 2 | Punta Leona | 08-03-2017 | ||
| 1 | La Ensenada | 12-03-2017 | ||
| White-throated Magpie-Jay | Calocitta formosa | 1 | Arenal | 03-03-2017 |
| 3 | La Ensenada | 11-03-2017 | ||
| 8 | La Ensenada | 12-03-2017 | ||
| Silky-flycatchers (Ptiliogonatidae) | ||||
| Long-tailed Silky-flycatcher | Ptiliogonys caudatus | 2 | San Gerardo de Dota | 09-03-2017 |
| 4 | San Gerardo de Dota | 09-03-2017 | ||
| 2 | San Gerardo de Dota | 10-03-2017 | ||
| Swallows, Martins (Hirundinidae) | ||||
| Mangrove Swallow | Tachycineta albilinea | 30 | Rio Tárcoles | 07-03-2017 |
| Grey-breasted Martin | Progne chalybea | 2 | La Fortuna | 02-03-2017 |
| 5 | Matapalo | 08-03-2017 | ||
| Blue-and-white Swallow | Notiochelidon cyanoleuca | 10 | San Gerardo de Dota | 09-03-2017 |
| 6 | San Gerardo de Dota | 10-03-2017 | ||
| 3 | La Ensenada | 11-03-2017 | ||
| Northern Rough-winged Swallow | Stelgidopteryx serripennis | 3 | Tárcoles | 07-03-2017 |
| Southern Rough-winged Swallow | Stelgidopteryx ruficollis | 1 | La Fortuna | 02-03-2017 |
| 1 | Arenal | 03-03-2017 | ||
| 2 | Arenal | 04-03-2017 | ||
| 1 | La Selva Biological Station | 05-03-2017 | ||
| Barn Swallow | Hirundo rustica | 1 | Rio Cuarros | 06-03-2017 |
| 1 | Rio Tárcoles | 07-03-2017 | ||
| 10 | Jacó | 08-03-2017 | ||
| Wrens (Troglodytidae) | ||||
| Band-backed Wren Rufous-backed Wren |
Campylorhynchus zonatus Campylorhynchus capistratus |
1 4 |
Arenal Alajuela - Hotel Aeropuerto |
03-03-2017 01-03-2017 |
| 4 | San Miguel | 02-03-2017 | ||
| 3 | La Fortuna | 02-03-2017 | ||
| 1 | Alajuela - Hotel Aeropuerto | 02-03-2017 | ||
| 3 | Rio Cuarros | 06-03-2017 | ||
| 6 | Punta Leona | 07-03-2017 | ||
| 4 | Punta Leona | 08-03-2017 | ||
| 1 | La Ensenada | 11-03-2017 | ||
| 2 | La Ensenada | 12-03-2017 | ||
| 3 | Alajuela - Hotel Aeropuerto | 12-03-2017 | ||
| Rufous-breasted Wren | Pheugopedius rutilus | 1 | Parque Nacional de Carara | 07-03-2017 |
| Bay Wren | Cantorchilus nigricapillus | 1 | La Selva Biological Station | 05-03-2017 |
| 1 | Cope's Place | 06-03-2017 | ||
| House Wren | Troglodytes aedon | 1 | Arenal | 03-03-2017 |
| 1 | Arenal | 04-03-2017 | ||
| Timberline Wren | Thryorchilus browni | 1 | Cerro de la Muerte - Antenas | 10-03-2017 |
| Gnatcatchers (Polioptilidae) | ||||
| White-lored Gnatcatcher | Polioptila albiloris | 2 | La Ensenada | 11-03-2017 |
| 2 | La Ensenada | 12-03-2017 | ||
| Mockingbirds, Thrashers (Mimidae) | ||||
| Grey Catbird | Dumetella carolinensis | 1 | La Selva Biological Station | 04-03-2017 |
| Tropical Mockingbird | Mimus gilvus | 1 | Chiles | 04-03-2017 |
| Thrushes (Turdidae) | ||||
| Black-faced Solitaire | Myadestes melanops | 1 | San Gerardo de Dota | 09-03-2017 |
| 1 | San Gerardo de Dota | 10-03-2017 | ||
| Ruddy-capped Nightingale-Thrush | Catharus frantzii | 1 | San Gerardo de Dota | 09-03-2017 |
| 2 | San Gerardo de Dota | 10-03-2017 | ||
| Sooty Thrush | Turdus nigrescens | 5 | San Gerardo de Dota | 09-03-2017 |
| Mountain Thrush | Turdus plebejus | 2 | San Gerardo de Dota | 09-03-2017 |
| Clay-colored Thrush | Turdus grayi | 12 | Alajuela - Hotel Aeropuerto | 01-03-2017 |
| 2 | Cinchona | 02-03-2017 | ||
| 1 | San Miguel | 02-03-2017 | ||
| 25 | La Fortuna | 02-03-2017 | ||
| 15 | Alajuela - Hotel Aeropuerto | 02-03-2017 | ||
| 3 | Poasito | 02-03-2017 | ||
| 20 | Arenal | 03-03-2017 | ||
| 7 | Arenal | 04-03-2017 | ||
| 2 | La Selva Biological Station | 04-03-2017 | ||
| 3 | La Selva Biological Station | 05-03-2017 | ||
| 2 | Rio Cuarros | 06-03-2017 | ||
| 3 | Cope's Place | 06-03-2017 | ||
| 12 | Punta Leona | 07-03-2017 | ||
| 10 | San Isidro de El General - Rio General | 08-03-2017 | ||
| 4 | San Gerardo de Dota | 09-03-2017 | ||
| 3 | San Gerardo de Dota | 09-03-2017 | ||
| 2 | San Gerardo de Dota | 10-03-2017 | ||
| 2 | La Ensenada | 11-03-2017 | ||
| 6 | La Ensenada | 12-03-2017 | ||
| 10 | Alajuela - Hotel Aeropuerto | 12-03-2017 | ||
| White-throated Thrush | Turdus assimilis | 1 | Arenal | 03-03-2017 |
| Old World Sparrows, Snowfinches (Passeridae) | ||||
| House Sparrow | Passer domesticus | 5 | La Fortuna | 02-03-2017 |
| 2 | San Gerardo de Dota | 10-03-2017 | ||
| Finches (Fringillidae) | ||||
| Yellow-bellied Siskin | Spinus xanthogastrus | 1 | San Gerardo de Dota | 09-03-2017 |
| 1 | San Gerardo de Dota | 10-03-2017 | ||
| Scrub Euphonia | Euphonia affinis | 1 | La Ensenada | 11-03-2017 |
| Yellow-throated Euphonia | Euphonia hirundinacea | 3 | La Fortuna | 02-03-2017 |
| 6 | Arenal | 03-03-2017 | ||
| 10 | Arenal | 04-03-2017 | ||
| 1 | Parque Nacional de Carara | 07-03-2017 | ||
| Olive-backed Euphonia | Euphonia gouldi | 5 | La Selva Biological Station | 05-03-2017 |
| White-vented Euphonia | Euphonia minuta | 1 | Arenal | 03-03-2017 |
| New World Warblers (Parulidae) | ||||
| Louisiana Waterthrush | Parkesia motacilla | 1 | San Gerardo de Dota | 09-03-2017 |
| Northern Waterthrush | Parkesia noveboracensis | 1 | Rio Cuarros | 06-03-2017 |
| 1 | Parque Nacional de Carara | 07-03-2017 | ||
| Black-and-white Warbler | Mniotilta varia | 1 | Arenal | 03-03-2017 |
| Prothonotary Warbler | Protonotaria citrea | 1 | Parque Nacional de Carara | 07-03-2017 |
| Flame-throated Warbler | Oreothlypis gutturalis | 1 | San Gerardo de Dota | 09-03-2017 |
| 3 | San Gerardo de Dota | 10-03-2017 | ||
| Tennessee Warbler | Leiothlypis peregrina | 2 | Alajuela - Hotel Aeropuerto | 01-03-2017 |
| 8 | Alajuela - Hotel Aeropuerto | 02-03-2017 | ||
| 3 | Alajuela - Hotel Aeropuerto | 12-03-2017 | ||
| Olive-crowned Yellowthroat | Geothlypis semiflava | 1 | La Selva Biological Station | 05-03-2017 |
| American Redstart | Setophaga ruticilla | 1 | San Gerardo de Dota | 09-03-2017 |
| American Yellow Warbler | Setophaga aestiva | 5 | Alajuela - Hotel Aeropuerto | 01-03-2017 |
| 1 | Alajuela - Hotel Aeropuerto | 02-03-2017 | ||
| 1 | Rio Cuarros | 06-03-2017 | ||
| 1 | Punta Leona | 08-03-2017 | ||
| 1 | La Ensenada | 11-03-2017 | ||
| 1 | La Ensenada | 12-03-2017 | ||
| Mangrove Warbler | Setophaga petechia | 1 | Rio Tárcoles | 07-03-2017 |
| 1 | Mata de Limón | 12-03-2017 | ||
| Chestnut-sided Warbler | Setophaga pensylvanica | 2 | La Fortuna | 02-03-2017 |
| 5 | Arenal | 03-03-2017 | ||
| 1 | La Selva Biological Station | 05-03-2017 | ||
| 1 | Rio Cuarros | 06-03-2017 | ||
| 1 | Parque Nacional de Carara | 07-03-2017 | ||
| 1 | Parque Nacional de Carara | 07-03-2017 | ||
| Black-throated Green Warbler | Setophaga virens | 1 | Poasito | 02-03-2017 |
| Buff-rumped Warbler | Myiothlypis fulvicauda | 1 | Arenal | 03-03-2017 |
| 2 | La Selva Biological Station | 05-03-2017 | ||
| Black-cheeked Warbler | Basileuterus melanogenys | 1 | San Gerardo de Dota | 09-03-2017 |
| Golden-crowned Warbler | Basileuterus culicivorus | 1 | Arenal | 03-03-2017 |
| Wilson's Warbler | Cardellina pusilla | 1 | La Fortuna | 02-03-2017 |
| 1 | Poasito | 02-03-2017 | ||
| 2 | San Gerardo de Dota | 09-03-2017 | ||
| 1 | San Gerardo de Dota | 09-03-2017 | ||
| 1 | San Gerardo de Dota | 10-03-2017 | ||
| Slate-throated Whitestart | Myioborus miniatus | 1 | La Fortuna | 02-03-2017 |
| Collared Whitestart | Myioborus torquatus | 2 | San Gerardo de Dota | 09-03-2017 |
| 3 | San Gerardo de Dota | 10-03-2017 | ||
| Oropendolas, Orioles and Blackbirds (Icteridae) | ||||
| Eastern Meadowlark | Sturnella magna | 1 | Jacó | 08-03-2017 |
| 1 | San Isidro de El General - Rio General | 08-03-2017 | ||
| 1 | La Ensenada | 10-03-2017 | ||
| 1 | La Ensenada | 11-03-2017 | ||
| 1 | La Ensenada | 12-03-2017 | ||
| 1 | Alajuela - Hotel Aeropuerto | 12-03-2017 | ||
| Chestnut-headed Oropendola | Psarocolius wagleri | 10 | Cope's Place | 06-03-2017 |
| Montezuma Oropendola | Psarocolius montezuma | 1 | Cinchona | 02-03-2017 |
| 20 | Arenal | 03-03-2017 | ||
| 15 | Arenal | 04-03-2017 | ||
| 6 | La Selva Biological Station | 05-03-2017 | ||
| 1 | Punta Leona | 07-03-2017 | ||
| 2 | La Ensenada | 11-03-2017 | ||
| 2 | La Ensenada | 12-03-2017 | ||
| Streak-backed Oriole | Icterus pustulatus | 5 | La Ensenada | 11-03-2017 |
| Baltimore Oriole | Icterus galbula | 2 | Cinchona | 02-03-2017 |
| 1 | Alajuela - Hotel Aeropuerto | 02-03-2017 | ||
| 1 | Poasito | 02-03-2017 | ||
| 1 | Arenal | 03-03-2017 | ||
| 1 | Punta Leona | 08-03-2017 | ||
| 1 | San Gerardo de Dota | 09-03-2017 | ||
| 1 | La Ensenada | 12-03-2017 | ||
| 1 | Alajuela - Hotel Aeropuerto | 12-03-2017 | ||
| Spot-breasted Oriole | Icterus pectoralis | 5 | La Ensenada | 11-03-2017 |
| 1 | La Ensenada | 12-03-2017 | ||
| Black-cowled Oriole | Icterus prosthemelas | 1 | La Selva Biological Station | 05-03-2017 |
| Red-winged Blackbird | Agelaius phoeniceus | 30 | Muelle San Carlos | 04-03-2017 |
| Giant Cowbird | Molothrus oryzivorus | 1 | Cope's Place | 06-03-2017 |
| Bronzed Cowbird | Molothrus aeneus | 1 | San Isidro de El General - Rio General | 08-03-2017 |
| Melodious Blackbird | Dives dives | 1 | Cinchona | 02-03-2017 |
| 1 | Alajuela - Hotel Aeropuerto | 02-03-2017 | ||
| 7 | Arenal | 03-03-2017 | ||
| 2 | Arenal | 04-03-2017 | ||
| 2 | Cope's Place | 06-03-2017 | ||
| 2 | La Ensenada | 12-03-2017 | ||
| Great-tailed Grackle | Quiscalus mexicanus | 1 | Alajuela - Hotel Aeropuerto | 01-03-2017 |
| 4 | La Fortuna | 02-03-2017 | ||
| 1 | Alajuela - Hotel Aeropuerto | 02-03-2017 | ||
| 2 | Arenal | 04-03-2017 | ||
| 2 | Rio Cuarros | 06-03-2017 | ||
| 3 | Cope's Place | 06-03-2017 | ||
| 5 | Punta Leona | 06-03-2017 | ||
| 20 | Rio Tárcoles | 07-03-2017 | ||
| 8 | Punta Leona | 08-03-2017 | ||
| 20 | Mata de Limón | 10-03-2017 | ||
| 10 | La Ensenada | 10-03-2017 | ||
| 6 | La Ensenada | 11-03-2017 | ||
| 4 | La Ensenada | 12-03-2017 | ||
| 4 | Alajuela - Hotel Aeropuerto | 12-03-2017 | ||
| Bananaquit (Coerebidae) | ||||
| Bananaquit | Coereba flaveola | 1 | Cinchona | 02-03-2017 |
| 1 | Arenal | 03-03-2017 | ||
| Buntings, New World Sparrows and allies (Emberizidae) | ||||
| Rufous-collared Sparrow | Zonotrichia capensis | 1 | Cinchona | 02-03-2017 |
| 1 | Poasito | 02-03-2017 | ||
| 1 | Cerro de la Muerte - Restaurante La Georgina | 08-03-2017 | ||
| 16 | San Gerardo de Dota | 09-03-2017 | ||
| 4 | San Gerardo de Dota | 09-03-2017 | ||
| 7 | San Gerardo de Dota | 10-03-2017 | ||
| Volcano Junco | Junco vulcani | 5 | Cerro de la Muerte - Antenas | 09-03-2017 |
| Stripe-headed Sparrow | Peucaea ruficauda | 2 | Rio Cuarros | 06-03-2017 |
| 1 | La Ensenada | 11-03-2017 | ||
| 1 | La Ensenada | 12-03-2017 | ||
| Olive Sparrow | Arremonops rufivirgatus | 1 | Rio Cuarros | 06-03-2017 |
| Black-striped Sparrow | Arremonops conirostris | 1 | Arenal | 03-03-2017 |
| Orange-billed Sparrow | Arremon aurantiirostris | 1 | Parque Nacional de Carara | 07-03-2017 |
| 1 | Punta Leona | 08-03-2017 | ||
| Chestnut-capped Brushfinch | Arremon brunneinucha | 1 | San Gerardo de Dota | 09-03-2017 |
| 3 | San Gerardo de Dota | 10-03-2017 | ||
| Large-footed Finch | Pezopetes capitalis | 2 | San Gerardo de Dota | 09-03-2017 |
| White-naped Brushfinch | Atlapetes albinucha | 1 | San Gerardo de Dota | 09-03-2017 |
| Yellow-thighed Finch | Pselliophorus tibialis | 1 | San Gerardo de Dota | 09-03-2017 |
| 1 | San Gerardo de Dota | 09-03-2017 | ||
| 3 | San Gerardo de Dota | 10-03-2017 | ||
| Common Bush Tanager (C.f.regionalis) | Chlorospingus flavopectus regionalis | 4 | Cinchona | 02-03-2017 |
| 3 | Poasito | 02-03-2017 | ||
| 1 | San Gerardo de Dota | 09-03-2017 | ||
| 1 | San Gerardo de Dota | 10-03-2017 | ||
| Sooty-capped Bush Tanager | Chlorospingus pileatus | 1 | San Gerardo de Dota | 09-03-2017 |
| 4 | San Gerardo de Dota | 10-03-2017 | ||
| Tanagers and allies (Thraupidae) | ||||
| White-shouldered Tanager | Tachyphonus luctuosus | 2 | Parque Nacional de Carara | 07-03-2017 |
| Crimson-collared Tanager | Ramphocelus sanguinolentus | 1 | Arenal | 03-03-2017 |
| Passerini's Tanager | Ramphocelus passerinii | 1 | Cinchona | 02-03-2017 |
| 1 | La Fortuna | 02-03-2017 | ||
| 6 | Arenal | 03-03-2017 | ||
| 10 | Arenal | 04-03-2017 | ||
| 10 | La Selva Biological Station | 05-03-2017 | ||
| 6 | La Selva Biological Station | 06-03-2017 | ||
| 4 | Cope's Place | 06-03-2017 | ||
| Blue-grey Tanager | Thraupis episcopus | 2 | Alajuela - Hotel Aeropuerto | 01-03-2017 |
| 8 | Cinchona | 02-03-2017 | ||
| 10 | La Fortuna | 02-03-2017 | ||
| 2 | Alajuela - Hotel Aeropuerto | 02-03-2017 | ||
| 10 | Arenal | 03-03-2017 | ||
| 6 | Arenal | 04-03-2017 | ||
| 6 | La Selva Biological Station | 04-03-2017 | ||
| 1 | La Selva Biological Station | 05-03-2017 | ||
| 5 | Cope's Place | 06-03-2017 | ||
| 2 | Punta Leona | 07-03-2017 | ||
| 2 | San Isidro de El General - Rio General | 08-03-2017 | ||
| 2 | Punta Leona | 08-03-2017 | ||
| 2 | San Gerardo de Dota | 09-03-2017 | ||
| 4 | Alajuela - Hotel Aeropuerto | 12-03-2017 | ||
| Palm Tanager | Thraupis palmarum | 2 | Cinchona | 02-03-2017 |
| 4 | La Fortuna | 02-03-2017 | ||
| 12 | Arenal | 03-03-2017 | ||
| 10 | Arenal | 04-03-2017 | ||
| 5 | La Selva Biological Station | 04-03-2017 | ||
| 5 | Cope's Place | 06-03-2017 | ||
| 1 | Alajuela - Hotel Aeropuerto | 12-03-2017 | ||
| Emerald Tanager | Tangara florida | 2 | Arenal | 03-03-2017 |
| Silver-throated Tanager | Tangara icterocephala | 10 | Cinchona | 02-03-2017 |
| 1 | San Gerardo de Dota | 09-03-2017 | ||
| Bay-headed Tanager | Tangara gyrola | 2 | San Miguel | 02-03-2017 |
| Golden-hooded Tanager | Tangara larvata | 1 | La Fortuna | 02-03-2017 |
| 5 | Arenal | 03-03-2017 | ||
| 2 | La Selva Biological Station | 05-03-2017 | ||
| 1 | Parque Nacional de Carara | 07-03-2017 | ||
| Spangle-cheeked Tanager | Tangara dowii | 2 | San Gerardo de Dota | 09-03-2017 |
| 1 | San Gerardo de Dota | 10-03-2017 | ||
| Scarlet-thighed Dacnis | Dacnis venusta | 1 | Arenal | 03-03-2017 |
| Blue Dacnis | Dacnis cayana | 1 | Arenal | 03-03-2017 |
| Red-legged Honeycreeper | Cyanerpes cyaneus | 8 | La Fortuna | 02-03-2017 |
| 6 | Arenal | 03-03-2017 | ||
| 4 | Arenal | 04-03-2017 | ||
| 2 | La Selva Biological Station | 06-03-2017 | ||
| 1 | Cope's Place | 06-03-2017 | ||
| 4 | Punta Leona | 08-03-2017 | ||
| Green Honeycreeper | Chlorophanes spiza | 1 | La Fortuna | 02-03-2017 |
| 2 | Arenal | 03-03-2017 | ||
| 2 | Arenal | 04-03-2017 | ||
| 1 | La Selva Biological Station | 05-03-2017 | ||
| 1 | Cope's Place | 06-03-2017 | ||
| Slaty Flowerpiercer | Diglossa plumbea | 1 | Poasito | 02-03-2017 |
| 2 | San Gerardo de Dota | 09-03-2017 | ||
| 3 | San Gerardo de Dota | 10-03-2017 | ||
| Black-headed Saltator | Saltator atriceps | 2 | Arenal | 04-03-2017 |
| Buff-throated Saltator | Saltator maximus | 3 | Cinchona | 02-03-2017 |
| 3 | La Fortuna | 02-03-2017 | ||
| 1 | La Selva Biological Station | 05-03-2017 | ||
| 1 | Cope's Place | 06-03-2017 | ||
| 1 | San Isidro de El General - Rio General | 08-03-2017 | ||
| 1 | San Gerardo de Dota | 10-03-2017 | ||
| Greyish Saltator | Saltator coerulescens | 1 | Cinchona | 02-03-2017 |
| 1 | Alajuela - Hotel Aeropuerto | 02-03-2017 | ||
| 1 | Alajuela - Hotel Aeropuerto | 12-03-2017 | ||
| Streaked Saltator | Saltator striatipectus | 1 | San Isidro de El General - Rio General | 08-03-2017 |
| Blue-black Grassquit | Volatinia jacarina | 1 | Rio Cuarros | 06-03-2017 |
| Variable Seedeater | Sporophila corvina | 2 | Arenal | 03-03-2017 |
| 2 | Arenal | 04-03-2017 | ||
| 5 | La Selva Biological Station | 04-03-2017 | ||
| 1 | La Selva Biological Station | 05-03-2017 | ||
| White-collared Seedeater | Sporophila torqueola | 2 | La Ensenada | 11-03-2017 |
| 4 | La Ensenada | 12-03-2017 | ||
| Thick-billed Seed Finch | Oryzoborus funereus | 2 | San Miguel | 02-03-2017 |
| Yellow-faced Grassquit | Tiaris olivaceus | 1 | Cinchona | 02-03-2017 |
| 4 | Arenal | 03-03-2017 | ||
| Cardinals, Grosbeaks and allies (Cardinalidae) | ||||
| Flame-colored Tanager | Piranga bidentata | 4 | San Gerardo de Dota | 09-03-2017 |
| 4 | San Gerardo de Dota | 09-03-2017 | ||
| Tooth-billed Tanager | Piranga lutea | 2 | Arenal | 03-03-2017 |
| Summer Tanager | Piranga rubra | 1 | Arenal | 03-03-2017 |
| 1 | Punta Leona | 07-03-2017 | ||
| 1 | La Ensenada | 11-03-2017 | ||
| Red-throated Ant Tanager | Habia fuscicauda | 1 | La Selva Biological Station | 05-03-2017 |
| Carmiol's Tanager | Chlorothraupis carmioli | 1 | Arenal | 03-03-2017 |
| 2 | Arenal | 04-03-2017 | ||
| Rose-breasted Grosbeak | Pheucticus ludovicianus | 1 | San Isidro de El General - Restaurante Ricar2 | 08-03-2017 |
| Black-faced Grosbeak | Caryothraustes poliogaster | 6 | La Selva Biological Station | 05-03-2017 |
| Dickcissel | Spiza americana | 1 | Quepos | 08-03-2017 |
| Indigo Bunting | Passerina cyanea | 1 | Rio Cuarros | 06-03-2017 |
| 1 | Quepos | 08-03-2017 | ||
| IOC World Bird List 7.2 (April 2017) | ||||
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