- Tawny-bellied Hermit
- Tawny-capped Euphonia
- Tawny-crested Tanager
- Tawny-flanked Prinia
- Tawny Pipit
- Temminck's Lark
- Tennessee Warbler
- Terek Sandpiper
- Thekla's Lark
- Thick-billed Euphonia
- Thick-billed Lark
- Thick-billed Murre
- Three-wattled Bellbird
- Thrush-like Wren
- Tibetan Sand Plover
- Toco Toucan
- Tolima Dove
- Torrent Duck
- Torrent Flyrobin
- Torrent Tyrannulet
- Toucan Barbet
- Tourmaline Sunangel
- Tree Pipit
- Tricolored Heron
- Tristram's Starling
- Tropical Gnatcatcher
- Tropical Kingbird
- Tropical Mockingbird
- Tropical Royal Flycatcher (mexicanus)
- Tropical Screech Owl
- Trumpeter Finch
- Tufted Duck
- Turkey Vulture
- Turquoise-browed Motmot
- Turquoise-fronted Amazon
- Turquoise Jay
- Tyrian Metaltail