- Taita Fiscal
- Talamanca Hummingbird
- Tambourine Dove
- Taveta Weaver
- Tawny-bellied Babbler
- Tawny-capped Euphonia
- Tawny-flanked Prinia
- Tawny Antpitta
- Tawny Eagle
- Tawny Owl
- Tawny Pipit
- Temminck's Courser
- Temminck's Stint
- Tennessee Warbler
- Thekla's Lark
- Thick-billed Euphonia
- Thick-billed Flowerpecker
- Thick-billed Murre
- Thick-billed Saltator
- Thick-billed Seed Finch
- Thick-billed Weaver
- Three-banded Plover
- Three-banded Warbler
- Thrush-like Wren
- Thrush Nightingale
- Tibetan Sand Plover
- Tickell's Blue Flycatcher
- Titicaca Grebe
- Toco Toucan
- Tooth-billed Tanager
- Torrent Duck
- Torrent Tyrannulet
- Toucan Barbet
- Tourmaline Sunangel
- Townsend's Solitaire
- Tractrac Chat
- Tree Pipit
- Tricolored Heron
- Tropical Boubou
- Tropical Kingbird
- Tropical Mockingbird
- Tropical Screech Owl
- Tropical Shearwater
- Trumpeter Finch
- Trumpeter Hornbill
- Tufted Duck
- Tufted Tit-Tyrant
- Turkey Vulture
- Turquoise-browed Motmot
- Turquoise-fronted Amazon
- Turquoise Jay
- Tyrian Metaltail