.
| Genus | Common name | |
|---|---|---|
| 
                                                
                                                
                                                 | 
                                            Machaeropterus Bonaparte | manakin | 
| 
                                                
                                                
                                                 | 
                                            Macheiramphus Bonaparte | Bat hawk | 
| 
                                                
                                                
                                                 | 
                                            Machlolophus Cabanis | |
| 
                                                
                                                
                                                 | 
                                            Macrocephalon Müller, S | maleo | 
| 
                                                
                                                
                                                 | 
                                            Macronus Jardine & Selby | tit-babbler | 
| 
                                                
                                                
                                                 | 
                                            Macronyx Swainson | longclaw | 
| 
                                                
                                                
                                                 | 
                                            Macropygia Swainson | typical cuckoo-dove | 
| 
                                                
                                                
                                                 | 
                                            Malacocincla Blyth | babbler | 
| 
                                                
                                                
                                                 | 
                                            Malcorus A. Smith | rufous-eared warbler | 
| 
                                                
                                                
                                                 | 
                                            Malia Schlegel | malia | 
| 
                                                
                                                
                                                 | 
                                            Malimbus Vieillot | malimbes | 
| 
                                                
                                                
                                                 | 
                                            Malurus Vieillot | fairywren | 
| 
                                                
                                                
                                                 | 
                                            Manacus Brisson | manakin | 
| 
                                                
                                                
                                                 | 
                                            Mandingoa Hartert | |
| 
                                                
                                                
                                                 | 
                                            Manorina Vieillot | miner | 
| 
                                                
                                                
                                                 | 
                                            Mareca Stephens | wigeon | 
| 
                                                
                                                
                                                 | 
                                            Margarobyas Olson & Suárez | bare-legged owl | 
| 
                                                
                                                
                                                 | 
                                            Margaroperdix Reichenbach | Madagascar partridge | 
| 
                                                
                                                
                                                 | 
                                            Margarops P.L. Sclater | pearly-eyed thrasher | 
| 
                                                
                                                
                                                 | 
                                            Marmaronetta Reichenbach | marbled duck, marbled teal | 
| 
                                                
                                                
                                                 | 
                                            Masius Bonaparte | Golden-winged manakin | 
| Mayrimunia Wolters | mannikin | |
| 
                                                
                                                
                                                 | 
                                            Megaceryle Kaup | kingfisher | 
| 
                                                
                                                
                                                 | 
                                            Megacrex D'Albertis & Salvadori | New Guinea flightless rail, Papuan flightless rail | 
| 
                                                
                                                
                                                 | 
                                            Megadyptes Milne-Edwards | penguin | 
| 
                                                
                                                
                                                 | 
                                            Megalurus Horsfield | striated grassbird | 
| 
                                                
                                                
                                                 | 
                                            Megarynchus Thunberg | boat-billed flycatcher | 
| 
                                                
                                                
                                                 | 
                                            Megascops Kaup | screech owl | 
| 
                                                
                                                
                                                 | 
                                            Megatriorchis Salvadori & D'Albertis | Doria's goshawk, Doria's hawk | 
| 
                                                
                                                
                                                 | 
                                            Meiglyptes Swainson | woodpecker | 
| 
                                                
                                                
                                                 | 
                                            Melaenornis G.R. Gray | flycatcher | 
| 
                                                
                                                
                                                 | 
                                            Melanerpes Swainson | woodpecker | 
| 
                                                
                                                
                                                 | 
                                            Melaniparus Bonaparte | |
| 
                                                
                                                
                                                 | 
                                            Melanitta F. Boie | scoters | 
| 
                                                
                                                
                                                 | 
                                            Melanochlora Lesson | |
| 
                                                
                                                
                                                 | 
                                            Melanocichla Sharpe | laughingthrush | 
| 
                                                
                                                
                                                 | 
                                            Melanocorypha F. Boie | |
| 
                                                
                                                
                                                 | 
                                            Melanodryas Gould | |
| Melanoperdix Jerdon | black partridge | |
| 
                                                
                                                
                                                 | 
                                            Melanoptila P.L. Sclater | black catbird | 
| 
                                                
                                                
                                                 | 
                                            Melanospiza Ridgway | |
| 
                                                
                                                
                                                 | 
                                            Melanotis Bonaparte | mockingbird | 
| 
                                                
                                                
                                                 | 
                                            Meleagris Linnaeus | turkeys | 
| 
                                                
                                                
                                                 | 
                                            Melidectes P.L. Sclater | melidectes | 
| 
                                                
                                                
                                                 | 
                                            Melidora Lesson | kingfisher | 
| 
                                                
                                                
                                                 | 
                                            Melierax G.R. Gray | goshawk | 
| 
                                                
                                                
                                                 | 
                                            Melithreptus Vieillot | honeyeater | 
| 
                                                
                                                
                                                 | 
                                            Mellisuga Brisson | |
| 
                                                
                                                
                                                 | 
                                            Melloria Mathews | black butcherbird | 
| 
                                                
                                                
                                                 | 
                                            Melopsittacus Gould | budgerigar, common parakeet, shell parakeet, budgie | 
| 
                                                
                                                
                                                 | 
                                            Melopyrrha Bonaparte | bullfinch | 
| 
                                                
                                                
                                                 | 
                                            Melospiza Baird | sparrow | 
| 
                                                
                                                
                                                 | 
                                            Melozone Reichenbach | towhee, ground sparrow | 
| 
                                                
                                                
                                                 | 
                                            Menelikornis Boetticher | turaco | 
| Mentocrex Peters, JL | forest rail | |
| 
                                                
                                                
                                                 | 
                                            Menura Latham | lyrebird | 
| 
                                                
                                                
                                                 | 
                                            Mergellus Selby | smew | 
| 
                                                
                                                
                                                 | 
                                            Mergus Linnaeus | typical merganser | 
| 
                                                
                                                
                                                 | 
                                            Meropogon Bonaparte | purple-bearded bee-eater, Celebes bee-eater | 
| 
                                                
                                                
                                                 | 
                                            Merops Linnaeus | bee-eaters | 
| 
                                                
                                                
                                                 | 
                                            Mesembrinibis J. L. Peters | |
| 
                                                
                                                
                                                 | 
                                            Metopidius Wagler | bronze-winged jacana | 
| 
                                                
                                                
                                                 | 
                                            Micrastur G.R. Gray | Forest falcon | 
| 
                                                
                                                
                                                 | 
                                            Micrathene Coues | elf owl | 
| 
                                                
                                                
                                                 | 
                                            Microbates P.L. Sclater & Salvin | gnatwren | 
| 
                                                
                                                
                                                 | 
                                            Microcarbo Bonaparte | cormorant | 
| 
                                                
                                                
                                                 | 
                                            Microchera Gould | streamertails | 
| Microdynamis Salvadori | dwarf koel | |
| 
                                                
                                                
                                                 | 
                                            Microeca Gould | flyrobins | 
| 
                                                
                                                
                                                 | 
                                            Microhierax Sharpe | typical falconets | 
| 
                                                
                                                
                                                 | 
                                            Micronisus G.R. Gray | gabar goshawk | 
| 
                                                
                                                
                                                 | 
                                            Microparra Cabanis | lesser jacana | 
| Micropsitta Lesson | Pygmy parrots | |
| 
                                                
                                                
                                                 | 
                                            Micropternus Blyth | rufous woodpecker | 
| 
                                                
                                                
                                                 | 
                                            Micropygia Bonaparte | ocellated crake | 
| 
                                                
                                                
                                                 | 
                                            Microspizias Sangster, Kirwan, Fuchs, Dickinson, Elliott & Gregory, S | |
| 
                                                
                                                
                                                 | 
                                            Microstilbon Todd | |
| 
                                                
                                                
                                                 | 
                                            Milvago Spix | caracara | 
| 
                                                
                                                
                                                 | 
                                            Milvus Lacépède | |
| 
                                                
                                                
                                                 | 
                                            Mimus F. Boie | mockingbird | 
| 
                                                
                                                
                                                 | 
                                            Minla Hodgson | red-tailed minla | 
| 
                                                
                                                
                                                 | 
                                            Mino Lesson | myna | 
| 
                                                
                                                
                                                 | 
                                            Mirafra Horsfield | lark, bush lark | 
| 
                                                
                                                
                                                 | 
                                            Mitrephanes Coues | Northern tufted flycatcher | 
| 
                                                
                                                
                                                 | 
                                            Mitu Lesson | curassow | 
| 
                                                
                                                
                                                 | 
                                            Mixornis Blyth | babbler | 
| 
                                                
                                                
                                                 | 
                                            Mniotilta Vieillot | Black-and-white Warbler | 
| 
                                                
                                                
                                                 | 
                                            Molothrus Swainson | grackle | 
| 
                                                
                                                
                                                 | 
                                            Momotidae P.L. Sclater | turquoise-browed motmot | 
| 
                                                
                                                
                                                 | 
                                            Momotus Brisson | motmot | 
| 
                                                
                                                
                                                 | 
                                            Monachella Salvadori | |
| 
                                                
                                                
                                                 | 
                                            Monarcha Vigors & Horsfield | monarch | 
| 
                                                
                                                
                                                 | 
                                            Montecincla Robin et al. | laughingthrush | 
| 
                                                
                                                
                                                 | 
                                            Monticola F. Boie | rock thrush | 
| 
                                                
                                                
                                                 | 
                                            Montifringilla Brehm CL | snowfinch | 
| 
                                                
                                                
                                                 | 
                                            Morococcyx .L. Sclater | lesser ground cuckoo | 
| 
                                                
                                                
                                                 | 
                                            Morphnus Dumont | Crested eagle | 
| 
                                                
                                                
                                                 | 
                                            Morus Vieillot | Gannets | 
| 
                                                
                                                
                                                 | 
                                            Motacilla Linnaeus | Wagtail | 
| 
                                                
                                                
                                                 | 
                                            Mulleripicus Bonaparte | woodpecker | 
| 
                                                
                                                
                                                 | 
                                            Muscicapa Brisson | flycatcher, alseonax | 
| 
                                                
                                                
                                                 | 
                                            Mustelirallus Bonaparte | crake | 
| 
                                                
                                                
                                                 | 
                                            Myadestes Swainson | rufous thrushe | 
| 
                                                
                                                
                                                 | 
                                            Mycerobas Cabanis | grosbeak | 
| 
                                                
                                                
                                                 | 
                                            Mycteria Linnaeus | stork | 
| 
                                                
                                                
                                                 | 
                                            Myiarchus Cabanis | flycatcher | 
| 
                                                
                                                
                                                 | 
                                            Myioborus Baird | Painted Redstart | 
| 
                                                
                                                
                                                 | 
                                            Myiomela G.R. Gray | robin, blue robin | 
| 
                                                
                                                
                                                 | 
                                            Myiopsitta Bonaparte | parakeet | 
| Myiothlypis Cabanis | ||
| 
                                                
                                                
                                                 | 
                                            Myiozetetes P.L. Sclater | flycatcher | 
| 
                                                
                                                
                                                 | 
                                            Myophonus Temminck | whistling thrush | 
| 
                                                
                                                
                                                 | 
                                            Myrmecocichla Cabanis | chat | 
| 
                                                
                                                
                                                 | 
                                            Myrmia Mulsant | |
| 
                                                
                                                
                                                 | 
                                            Myrmothera Vieillot | antpitta | 
| 
                                                
                                                
                                                 | 
                                            Myrtis Reichenbach | purple-collared woodstar | 
| 
                                                
                                                
                                                 | 
                                            Myzomela Vigors & Horsfield | myzomela | 
| 
                                                
                                                
                                                 | 
                                            Myzornis Blyth |