Swainson's flycatcher 
Swainson's Thrush 
Swainson's warbler 
Swallow tanager 
Swamp boubou 
Swamp flycatcher 
Swinhoe's White-eye 
Sykess warbler 
Syrian serin 
Tacazze sunbird 
Taczanowski's Brush-finch 
Taczanowski's Ground-Tyrant 
Taiga flycatcher 
Taita fiscal 
Taiwan barwing 
Taiwan Bulbul 
Taiwan hwamei 
Taiwan yuhina 
Tanager finch 
Taveta weaver 
Tawny antpitta 
Tawny pipit 
Tawny tit-spinetail 
Tawny-bellied babbler