Malaysian blue flycatcher 
Malaysian Pied-Fantail 
Malindi pipit 
Mangrove blue flycatcher 
Mangrove pitta 
Mangrove robin 
Mangrove Swallow 
Mangrove vireo 
Mangrove Whistler 
Mangrove Yellow Warbler 
Manu antbird 
Many-colored rush tyrant 
Many-striped canastero 
Marañón crescentchest 
Marañon Gnatcatcher 
Marañón spinetail 
Marañón thrush 
Maranon tyrannulet 
Marble-faced bristle tyrant 
Marbled honeyeater 
Marcapata spinetail 
Marico flycatcher 
Marico sunbird 
Maroon-belted chat-tyrant