| Black-breasted Boatbill Machaerirhynchus nigripectus | Passeriformes / Machaerirhynchidae | LC |
| Club-winged Manakin Machaeropterus deliciosus | Passeriformes / Pipridae | LC |
| Painted Manakin Machaeropterus eckelberryi | Passeriformes / Pipridae | LC |
| Fiery-capped Manakin Machaeropterus pyrocephalus | Passeriformes / Pipridae | LC |
| Kinglet Manakin Machaeropterus regulus | Passeriformes / Pipridae | LC |
| Striolated Manakin Machaeropterus striolatus | Passeriformes / Pipridae | LC |
| Bat Hawk Macheiramphus alcinus | Accipitriformes / Accipitridae | LC |
| Cattle Tyrant Machetornis rixosa | Passeriformes / Tyrannidae | LC |
| Indian Black-lored Tit Machlolophus aplonotus | Passeriformes / Paridae | NE |
| White-naped Tit Machlolophus nuchalis | Passeriformes / Paridae | VU |
| Large-tailed Antshrike Mackenziaena leachii | Passeriformes / Thamnophilidae | LC |
| Tufted Antshrike Mackenziaena severa | Passeriformes / Thamnophilidae | LC |
| Golden-tufted Mountain Grackle Macroagelaius imthurni | Passeriformes / Icteridae | LC |
| Colombian Mountain Grackle Macroagelaius subalaris | Passeriformes / Icteridae | EN |
| Maleo Macrocephalon maleo | Galliformes / Megapodiidae | CR |
| Southern Giant Petrel Macronectes giganteus | Procellariiformes / Procellariidae | LC |
| Northern Giant Petrel Macronectes halli | Procellariiformes / Procellariidae | LC |
| Fluffy-backed Tit-Babbler Macronus ptilosus | Passeriformes / Timaliidae | NT |
| Brown Tit-Babbler Macronus striaticeps | Passeriformes / Timaliidae | LC |
| Rosy-throated Longclaw Macronyx ameliae | Passeriformes / Motacillidae | LC |
| Pangani Longclaw Macronyx aurantiigula | Passeriformes / Motacillidae | LC |
| Cape Longclaw Macronyx capensis | Passeriformes / Motacillidae | LC |
| Yellow-throated Longclaw Macronyx croceus | Passeriformes / Motacillidae | LC |
| Abyssinian Longclaw Macronyx flavicollis | Passeriformes / Motacillidae | NT |
| Fülleborn's Longclaw Macronyx fuelleborni | Passeriformes / Motacillidae | LC |
| Grimwood's Longclaw Macronyx grimwoodi | Passeriformes / Motacillidae | LC |
| Sharpe's Longclaw Macronyx sharpei | Passeriformes / Motacillidae | EN |
| Amboyna Cuckoo-Dove Macropygia amboinensis | Columbiformes / Columbidae | NE |
| Enggano Cuckoo-Dove Macropygia cinnamomea | Columbiformes / Columbidae | NT |
| Sultan's Cuckoo-Dove Macropygia doreya | Columbiformes / Columbidae | NE |
| Ruddy Cuckoo-Dove Macropygia emiliana | Columbiformes / Columbidae | NE |
| Flores Sea Cuckoo-Dove Macropygia macassariensis | Columbiformes / Columbidae | LC |
| Spot-breasted Cuckoo-Dove Macropygia mackinlayi | Columbiformes / Columbidae | LC |
| Timor Cuckoo-Dove Macropygia magna | Columbiformes / Columbidae | LC |
| Barusan Cuckoo-Dove Macropygia modiglianii | Columbiformes / Columbidae | NE |
| Bar-tailed Cuckoo-Dove Macropygia nigrirostris | Columbiformes / Columbidae | LC |
| Brown Cuckoo-Dove Macropygia phasianella | Columbiformes / Columbidae | LC |
| Andaman Cuckoo-Dove Macropygia rufipennis | Columbiformes / Columbidae | LC |
| Tanimbar Cuckoo-Dove Macropygia timorlaoensis | Columbiformes / Columbidae | LC |
| Grey Longbill Macrosphenus concolor | Passeriformes / Macrosphenidae | LC |
| Yellow Longbill Macrosphenus flavicans | Passeriformes / Macrosphenidae | LC |
| Kemp's Longbill Macrosphenus kempi | Passeriformes / Macrosphenidae | LC |
| Kretschmer's Longbill Macrosphenus kretschmeri | Passeriformes / Macrosphenidae | LC |
| Pulitzer's Longbill Macrosphenus pulitzeri | Passeriformes / Macrosphenidae | EN |
| Anianiau Magumma parva | Passeriformes / Fringillidae | EN |
| Abbott's Babbler Malacocincla abbotti | Passeriformes / Pellorneidae | LC |
| Black-browed Babbler Malacocincla perspicillata | Passeriformes / Pellorneidae | NT |
| Horsfield's Babbler Malacocincla sepiaria | Passeriformes / Pellorneidae | LC |
| Uluguru Bushshrike Malaconotus alius | Passeriformes / Malaconotidae | EN |
| Grey-headed Bushshrike Malaconotus blanchoti | Passeriformes / Malaconotidae | LC |