- Tacazze Sunbird
- Taita Fiscal
- Tambourine Dove
- Tasmanian Nativehen
- Tasmanian Scrubwren
- Tasmanian Thornbill
- Tataupa Tinamou
- Taveta Weaver
- Tawny-bellied Hermit
- Tawny-capped Euphonia
- Tawny-crowned Honeyeater
- Tawny-flanked Prinia
- Tawny Antpitta
- Tawny Eagle
- Tawny Frogmouth
- Tawny Grassbird
- Tawny Owl
- Tenerife Blue Chaffinch
- Thekla's Lark
- Thick-billed Euphonia
- Thick-billed Green Pigeon
- Thick-billed Saltator
- Thick-billed Seed Finch
- Thick-billed Weaver
- Three-banded Courser
- Three-banded Plover
- Three-striped Warbler
- Thrush-like Wren
- Tickell's Blue Flycatcher
- Tiny Hawk
- Toco Toucan
- Tooth-billed Wren
- Torotoroka Scops Owl
- Torrent Tyrannulet
- Toucan Barbet
- Tourmaline Sunangel
- Tree Martin
- Tree Pipit
- Tricolored Heron
- Trilling Gnatwren
- Tropical Boubou
- Tropical Gnatcatcher
- Tropical Kingbird
- Tropical Mockingbird
- Tropical Parula
- Tufted Duck
- Tui Parakeet
- Turkey Vulture
- Turquoise-browed Motmot
- Turquoise-fronted Amazon
- Turquoise Jay
- Tylas Vanga
- Tyrian Metaltail