- Taiga Bean Goose
- Tawny-flanked Prinia
- Tawny Eagle
- Tawny Owl
- Tawny Pipit
- Temminck's Stint
- Tenerife Blue Chaffinch
- Tennessee Warbler
- Thekla's Lark
- Thick-billed Murre
- Thick-billed Siskin
- Thick-billed Weaver
- Three-banded Plover
- Thrush Nightingale
- Toco Toucan
- Tree Pipit
- Tree Swallow
- Tropical Kingbird
- Tropical Parula
- Trumpeter Finch
- Trumpeter Hornbill
- Tufted Duck
- Tundra Bean Goose
- Tundra Swan
- Turkey Vulture
- Turquoise-fronted Amazon
- Twite
- Two-banded Warbler
- Two-barred Crossbill