- Tawny-bellied Hermit
- Tawny-bellied Screech Owl
- Tawny-crowned Greenlet
- Tawny-flanked Prinia
- Tawny-throated Leaftosser
- Tawny Antpitta
- Tawny Eagle
- Tawny Owl
- Temminck's Stint
- Terrestrial Brownbul
- Thick-billed Euphonia
- Thick-billed Murre
- Three-banded Plover
- Three-banded Warbler
- Three-striped Warbler
- Thrush-like Wren
- Tiny Hawk
- Tiny Tyrant-Manakin
- Tit-like Dacnis
- Toco Toucan
- Todd's Antwren
- Torrent Duck
- Tractrac Chat
- Tree Pipit
- Tricolored Heron
- Trilling Gnatwren
- Tropical Gnatcatcher
- Tropical Kingbird
- Tropical Mockingbird
- Tropical Parula
- Tropical Screech Owl
- Trumpeter Hornbill
- Tufted Coquette
- Tufted Duck
- Tumbes Hummingbird
- Tundra Swan
- Turkey Vulture
- Turquoise Jay
- Turquoise Tanager
- Two-barred Crossbill