- Taiga Bean Goose
- Taiga Flycatcher
- Taita Fiscal
- Taveta Weaver
- Tawny-bellied Hermit
- Tawny-shouldered Blackbird
- Tawny Eagle
- Tawny Frogmouth
- Tawny Owl
- Tawny Pipit
- Temminck's Courser
- Tenerife Blue Chaffinch
- Terek Sandpiper
- Thekla's Lark
- Thick-billed Euphonia
- Thick-billed Kingbird
- Thick-billed Seedeater
- Thick-billed Siskin
- Thick-billed Vireo
- Thick-billed Weaver
- Three-banded Plover
- Thrush-like Wren
- Titicaca Grebe
- Toco Toucan
- Tomtit
- Torrent Duck
- Torrent Tyrannulet
- Torresian Crow
- Torresian Imperial Pigeon
- Tree Pipit
- Tricolored Heron
- Tristram's Starling
- Trocaz Pigeon
- Tropical Boubou
- Tropical Kingbird
- Tropical Mockingbird
- Trumpeter Hornbill
- Tsavo Sunbird
- Tufted Duck
- Tufted Tit-Tyrant
- Tui
- Tumbes Pewee
- Turkey Vulture
- Turquoise-browed Motmot
- Turquoise-fronted Amazon
- Turquoise Jay
- Two-barred Crossbill