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Alajuela
Illustrated Checklist
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Native and Naturalized (768)
Exotic: Escapee (8)
Hybrids (6)
- Muscovy Duck x Mallard (hybrid) Cairina moschata x Anas platyrhynchosLast observed by Giovanni Cubillo Solano on 20 Feb 2022
- Red-crowned x Hoffmann's Woodpecker (hybrid) Melanerpes rubricapillus x hoffmanniiLast observed by David Hernández on 1 Jul 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
Additional Taxa (121)
- Long-billed/Plain-capped Starthroat Heliomaster longirostris/constantiiLast observed by Jason Paulios on 2 Nov 2023
- Russet-naped/Gray-cowled Wood-Rail Aramides albiventris/cajaneusLast observed by Michael Brower on 27 Jan 2024
- Short-billed/Long-billed Dowitcher Limnodromus griseus/scolopaceusLast observed by Armando Obando on 28 Mar 2024
- large shorebird sp. Scolopacidae sp. (large shorebird sp.)Last observed by Róger Rodríguez Bravo on 10 Sep 2023
- Yellow-crowned/Black-crowned Night Heron Nycticorax nycticorax/Nyctanassa violaceaLast observed by Quinn Diaz on 17 Feb 2023
- Western/Eastern Cattle Egret Bubulcus ibis/coromandusLast observed by Carlos Cruz Morales on 9 Dec 2023
- Mississippi/Plumbeous Kite Ictinia mississippiensis/plumbeaLast observed by Guillermo Saborío Vega on 9 Nov 2020
- Sharp-shinned/Cooper's Hawk Accipiter striatus/cooperiiLast observed by Barbara Blevins on 27 Oct 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
- diurnal raptor sp. Accipitriformes/Falconiformes sp.Last observed by Menachem Goldstein on 20 Feb 2024
- large parakeet sp. (former Aratinga sp.) Eupsittula/Aratinga/Thectocercus/Psittacara sp.Last observed by Braden Collard on 12 Mar 2024
- antwren sp. Thamnophilidae sp. (antwren sp.)Last observed by David de Rivera Tønnessen on 6 Jan 2021
- foliage-gleaner sp. Furnariidae sp. (foliage-gleaner sp.)Last observed by Burke Korol on 25 Feb 2015
- tropical pewee sp. Contopus punensis/cinereus/bogotensisLast observed by Traluxu VIP Travel Costa Rica on 27 Apr 2023
- Alder/Willow Flycatcher (Traill's Flycatcher) Empidonax alnorum/trailliiLast observed by Tim Schmölzer on 11 Apr 2024
- Streaked/Sulphur-bellied Flycatcher Myiodynastes maculatus/luteiventrisLast observed by Urs Geiser on 7 Apr 2024
- Northern/Southern Rough-winged Swallow Stelgidopteryx serripennis/ruficollisLast observed by Marshall Iliff on 12 Mar 2024
- Cabanis's/Canebrake Wren Cantorchilus modestus/zeledoniLast observed by Andrée Duhaime on 17 Feb 2024
- Louisiana/Northern Waterthrush Parkesia motacilla/noveboracensisLast observed by Steve Luke on 27 Mar 2024
- MacGillivray's/Mourning Warbler Geothlypis tolmiei/philadelphiaLast observed by Jonah Tamez on 12 Jan 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 Arenal Observatory Lodge Aves on 17 Nov 2023
- tanager sp. (Thraupidae sp.) Thraupidae sp. (tanager sp.)Last observed by logan kahle on 1 Jan 2022