Long-crested pygmy tyrant 
Long-tailed tyrant 
Maranon tyrannulet 
Marble-faced bristle tyrant 
Maroon-belted chat-tyrant 
Masked water tyrant 
Mishana tyrannulet 
Mistletoe tyrannulet 
Mottle-backed elaenia 
Mottle-cheeked tyrannulet 
Mountain Elaenia 
Northern beardless tyrannulet 
Northern bentbill 
Northern tufted flycatcher 
Ochraceous-breasted flycatcher 
Ochre-bellied flycatcher 
Ochre-faced tody-flycatcher 
Ochre-naped ground tyrant 
Olivaceous flatbill 
Olive flycatcher 
Olive-sided flycatcher 
Olive-striped flycatcher 
Orange-eyed flatbill 
Ornate flycatcher