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Costa Rica
Illustrated Checklist
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Native and Naturalized (925)
Exotic: Escapee (17)
Undescribed Species (1)
- Puntarenas Screech-Owl (undescribed form) Megascops [undescribed form]Last observed by Nic Korte on 11 Apr 2024
Hybrids (17)
- Blue-winged x Cinnamon Teal (hybrid) Spatula discors x cyanopteraLast observed by Yoryoro ZL on 4 Feb 2017
- Muscovy Duck x Mallard (hybrid) Cairina moschata x Anas platyrhynchosLast observed by Giovanni Cubillo Solano on 20 Feb 2022
- American Wigeon x Mallard (hybrid) Mareca americana x Anas platyrhynchosLast observed by Yoryoro ZL on 4 Feb 2017
- Mallard x Northern Pintail (hybrid) Anas platyrhynchos x acutaLast observed by Daniel Martínez on 21 Apr 2015
- Blue-winged x Green-winged Teal (hybrid) Spatula discors x Anas creccaLast observed by Lilly Briggs on 18 Mar 2024
- Cinnamon x Green-winged Teal (hybrid) Spatula cyanoptera x Anas creccaLast observed by Kevin Quirós on 16 Mar 2021
- Cinnamon x Rufous-tailed Hummingbird (hybrid) Amazilia rutila x tzacatlLast observed by Kathryn Dick on 30 Oct 2023
- Northern x Wattled Jacana (hybrid) Jacana spinosa x jacanaLast observed by Bill Sedivy on 17 Nov 2022
- Red-crowned x Hoffmann's Woodpecker (hybrid) Melanerpes rubricapillus x hoffmanniiLast observed by Daniel Garrigues on 13 Apr 2024
- Blue-and-yellow x Scarlet Macaw (hybrid) Ara ararauna x macaoLast observed by Nevine Jacob on 21 Feb 2023
- Great Green x Scarlet Macaw (hybrid) Ara ambiguus x macaoLast observed by Matthew Igleski on 11 Apr 2024
- Golden-winged x Blue-winged Warbler (hybrid) Vermivora chrysoptera x cyanopteraLast observed by Marshall Iliff on 19 Mar 2024
- Brewster's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F1 hybrid)Last observed by Marshall Iliff on 18 Mar 2024
- Lawrence's Warbler (hybrid) Vermivora chrysoptera x cyanoptera (F2 backcross)Last observed by Andrés Ulate on 23 Mar 2024
- Townsend's x Hermit Warbler (hybrid) Setophaga townsendi x occidentalisLast observed by Freddy Quesada on 30 Dec 2022
- Townsend's x Black-throated Green Warbler (hybrid) Setophaga townsendi x virensLast observed by David Garrigues on 3 Jan 2023
- Scarlet-rumped x Crimson-backed Tanager (hybrid) Ramphocelus passerinii x dimidiatusLast observed by Roberto Garrigues on 31 Oct 2021
Additional Taxa (217)
- Domestic goose sp. (Domestic type) Anser sp. (Domestic type)Last observed by Chris Rohrer on 26 Jun 2017
- Smooth-billed/Groove-billed Ani Crotophaga ani/sulcirostrisLast observed by Joshua Covill on 12 Dec 2022
- Yellow-billed/Pearly-breasted Cuckoo Coccyzus americanus/euleriLast observed by Pat O'Donnell on 2 Feb 2021
- Yellow-billed/Black-billed Cuckoo Coccyzus americanus/erythropthalmusLast observed by Róger Rodríguez Bravo on 13 Oct 2022
- Long-billed/Plain-capped Starthroat Heliomaster longirostris/constantiiLast observed by Rolando Leiva on 21 Apr 2024
- Purple-throated/White-throated Mountain-gem Lampornis calolaemus/castaneoventrisLast observed by Cabañas Colibrí Tayutic on 21 Apr 2024
- Riccordia/Cynanthus/Chlorostilbon sp. Riccordia/Cynanthus/Chlorostilbon sp.Last observed by Daniel Martínez on 20 Aug 2019
- Russet-naped/Gray-cowled Wood-Rail Aramides albiventris/cajaneusLast observed by Rebecca Maier on 20 Apr 2024
- American/Pacific Golden-Plover (Lesser Golden-Plover) Pluvialis dominica/fulvaLast observed by Jim Zook on 2 May 2019
- Black-bellied Plover/golden-plover sp. Pluvialis sp.Last observed by Steven A. Montenegro on 16 Nov 2019
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Clinton Dexter-Nienhaus on 10 Apr 2024
- Red/Red-necked Phalarope Phalaropus fulicarius/lobatusLast observed by Miguel Circuito on 22 Sep 2023
- Western/Semipalmated Sandpiper Calidris mauri/pusillaLast observed by Nikki Maija Meyer on 17 Apr 2024
- large shorebird sp. Scolopacidae sp. (large shorebird sp.)Last observed by Róger Rodríguez Bravo on 10 Sep 2023
- Long-tailed/Parasitic Jaeger Stercorarius longicaudus/parasiticusLast observed by Chris Wood on 19 Sep 2023
- Long-tailed/Pomarine Jaeger Stercorarius longicaudus/pomarinusLast observed by Wilfredo Villalobos on 9 May 2020
- Laughing/Franklin's Gull Leucophaeus atricilla/pipixcanLast observed by Matt Longabaugh on 11 Feb 2019
- Leach's/Townsend's Storm-Petrel (dark-rumped) Hydrobates leucorhous/socorroensis (dark-rumped)Last observed by Luke Seitz on 29 Mar 2024
- Black/Markham's Storm-Petrel Hydrobates melania/markhamiLast observed by Juan Diego Vargas on 20 Sep 2023
- Sooty/Short-tailed Shearwater Ardenna grisea/tenuirostrisLast observed by Alex Molina on 21 Jul 2023
- black-and-white shearwater sp. Puffinus sp. (black-and-white shearwater sp.)Last observed by Johanny Pérez Alvarado on 6 Mar 2024
- Yellow-crowned/Black-crowned Night Heron Nycticorax nycticorax/Nyctanassa violaceaLast observed by Quinn Diaz on 17 Feb 2023
- Mississippi/Plumbeous Kite Ictinia mississippiensis/plumbeaLast observed by Nicole Holmes on 11 Feb 2024
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Barbara Blevins on 27 Oct 2023
- Common/Great Black Hawk Buteogallus anthracinus/urubitingaLast observed by Enzo Basso on 20 Dec 2023
- Keel-billed/Broad-billed Motmot Electron carinatum/platyrhynchumLast observed by Richard Littauer on 4 Nov 2023
- Campephilus sp./Lineated Woodpecker Campephilus sp./Dryocopus lineatusLast observed by Richard Littauer on 4 Nov 2023
- large parakeet sp. (former Aratinga sp.) Eupsittula/Aratinga/Thectocercus/Psittacara sp.Last observed by Braden Collard on 12 Mar 2024
- foliage-gleaner sp. Furnariidae sp. (foliage-gleaner sp.)Last observed by Max Laubstein on 25 Dec 2023
- Sulphur-rumped/Black-tailed Flycatcher Myiobius sulphureipygius/atricaudusLast observed by Mark Dorriesfield on 18 Sep 2019
- tropical pewee sp. Contopus punensis/cinereus/bogotensisLast observed by Curt Morgan on 16 Mar 2024
- Western/Eastern Wood-Pewee Contopus sordidulus/virensLast observed by Santiago Mora Abarca on 21 Apr 2024
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by David Rodríguez Arias on 21 Apr 2024
- Streaked/Sulphur-bellied Flycatcher Myiodynastes maculatus/luteiventrisLast observed by Urs Geiser on 7 Apr 2024
- yellow-bellied kingbird sp. Tyrannus sp. (yellow-bellied)Last observed by Róger Rodríguez Bravo on 13 Apr 2024
- Philadelphia/Warbling Vireo Vireo philadelphicus/gilvusLast observed by Dan Ceravolo on 16 Apr 2023
- Philadelphia/Red-eyed Vireo Vireo philadelphicus/olivaceusLast observed by Daniel Martínez on 26 Aug 2015
- Red-eyed/Yellow-green Vireo Vireo olivaceus/flavoviridisLast observed by Niall Keogh on 12 Jan 2023
- Northern/Southern Rough-winged Swallow Stelgidopteryx serripennis/ruficollisLast observed by Matthew Igleski on 12 Apr 2024
- Cabanis's/Canebrake Wren Cantorchilus modestus/zeledoniLast observed by Glenn Crawford on 16 Apr 2024
- Cabanis's/Isthmian Wren Cantorchilus modestus/elutusLast observed by Harold van Riessen on 17 Apr 2024
- Shiny/Bronzed Cowbird Molothrus bonariensis/aeneusLast observed by Róger Rodríguez Bravo on 26 Jun 2022
- Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensisLast observed by vicky pope on 14 Apr 2024
- Connecticut/MacGillivray's/Mourning Warbler Oporornis/Geothlypis sp. (Mourning-type)Last observed by Graham Floyd on 20 Apr 2012
- MacGillivray's/Mourning Warbler Geothlypis tolmiei/philadelphiaLast observed by Jonah Tamez on 12 Jan 2024
- yellowthroat sp. Geothlypis sp. (yellowthroat sp.)Last observed by Natalia Soledad Herrada on 27 Mar 2024
- Bay-breasted/Blackpoll Warbler Setophaga castanea/striataLast observed by Barrett Lawson on 14 Nov 2021
- Rose-breasted/Black-headed Grosbeak Pheucticus ludovicianus/melanocephalusLast observed by John Hicks on 27 Mar 2024
- Shining/Red-legged Honeycreeper Cyanerpes lucidus/cyaneusLast observed by Daniel Martínez on 21 Aug 2022
- tanager sp. (Thraupidae sp.) Thraupidae sp. (tanager sp.)Last observed by Jonas Gonzalez on 20 Nov 2023