Mistle Thrush 
Mistletoe tyrannulet 
Mistletoebird 
Mocking Cliff Chat 
Moluccan cuckooshrike 
Mongolian finch 
Montane foliage-gleaner 
Montane Woodcreeper 
Monteiros bushshrike 
Montezuma Oropendola 
Moorland chat 
Morelet's seedeater 
Moriche oriole 
Moss-backed tanager 
Mottle-backed elaenia 
Mottle-cheeked tyrannulet 
Mountain Bluebird 
Mountain bulbul 
Mountain cacique 
Mountain chickadee 
Mountain Elaenia 
Mountain firetail 
Mountain Fulvetta 
Mountain greenbul