- Moustached Tree Babbler
- Moustached Treeswift
- Moustached Turca
- Moustached Warbler
- Moustached Woodcreeper
- Moustached Wren
- Mozambique
- Mozambique Batis
- Mozambique Nightjar
- Mpumalanga
- Mrs. Gould's Sunbird
- Mrs. Hume's Pheasant
- Mrs. Moreau's Warbler
- Mrs Gould's Sunbird
- Mrs Goulds Sunbird
- Mrs Johnstone's Lorikeet
- Mrs La Touche's Shortwing
- Mt. Cameroon Speirops
- Mt. Davidson(San Francisco)
- Mt. Kupe Bushshrike
- Muddus National Park
- Muddus National Park Sweden
- Mudlark
- Mueller's Barbet
- Mugimaki Flycatcher
- Mulga Parrot
- Mull
- Mull Scotland
- Mull of Galloway
- Mull of Galloway RSPB Reserve Scotland
- Mulleripicus
- Mulleripicus fuliginosus
- Mulleripicus fulvus
- Mulleripicus fulvus fulvus
- Mulleripicus funebris
- Mulleripicus pulverulentus
- Mullet Peninsula
- Mullet Peninsula and nearby islands Ireland
- Multi-crested Bird-of-paradise
- Multi-crested Bird of Paradise
- Multicolored Tanager
- Muna Cuckoo-shrike
- Muna Cuckooshrike
- Munchique Wood-Wren
- Munchique Wood Wren
- Munnar
- Murchison Falls National Park
- Muriwai Beach
- Muriwai Beach(North Island)
- Murphy's Petrel
- Murray Magpie
- Murton Nature Reserve
- Muscicapa
- Muscicapa adusta
- Muscicapa aquatica
- Muscicapa boehmi
- Muscicapa caerulescens
- Muscicapa cassini
- Muscicapa comitata
- Muscicapa dauurica
- Muscicapa epulata
- Muscicapa ferruginea
- Muscicapa gambagae
- Muscicapa griseisticta
- Muscicapa infuscata
- Muscicapa itombwensis
- Muscicapa latirostris
- Muscicapa lendu
- Muscicapa muttui
- Muscicapa olivascens
- Muscicapa randi
- Muscicapa ruficauda
- Muscicapa segregata
- Muscicapa sethsmithi
- Muscicapa siamensis
- Muscicapa sibirica
- Muscicapa sodhii
- Muscicapa striata
- Muscicapa striata tyrrhenica
- Muscicapa tessmanni
- Muscicapa tyrrhenica
- Muscicapa ussheri
- Muscicapa williamsoni
- Muscicapella
- Muscicapella hodgsoni
- Muscicapidae
- Muscigralla
- Muscigralla brevicauda
- Muscipipra
- Muscipipra vetula
- Muscisaxicola
- Muscisaxicola albifrons
- Muscisaxicola albilora
- Muscisaxicola alpina
- Muscisaxicola alpinus
- Muscisaxicola capistrata
- Muscisaxicola capistratus
- Muscisaxicola cinerea
- Muscisaxicola cinereus
- Muscisaxicola flavinucha
- Muscisaxicola fluviatilis
- Muscisaxicola frontalis
- Muscisaxicola griseus
- Muscisaxicola juninensis
- Muscisaxicola macloviana
- Muscisaxicola macloviana mentalis
- Muscisaxicola maclovianus
- Muscisaxicola maclovianus maclovianus
- Muscisaxicola maculirostris
- Muscisaxicola rufivertex
- Muscovy Duck
- Musician Wren
- Musk Duck
- Musk Lorikeet
- Musophaga
- Musophaga johnstoni
- Musophaga porphyreolopha
- Musophaga rossae
- Musophaga violacea
- Musophagidae
- Musophagiformes
- Mussau Fantail
- Mussau Monarch
- Mussau Rufous Fantail
- Mussau Triller
- Musselburgh
- Musselburgh Scotland
- Mustang Island State Park
- Mustelirallus
- Mustelirallus albicollis
- Mustelirallus colombianus
- Mustelirallus erythrops
- Mute Swan
- Muttonbird
- Myadestes
- Myadestes coloratus
- Myadestes elisabeth
- Myadestes genibarbis
- Myadestes lanaiensis
- Myadestes melanops
- Myadestes myadestinus
- Myadestes oahensis
- Myadestes obscurus
- Myadestes occidentalis
- Myadestes palmeri
- Myadestes ralloides
- Myadestes townsendi
- Myadestes unicolor
- Myadestes woahensis
- Myakka State Park
- Myakka State Park(Myakka Florida)
- Myanmar
- Myanmar Tit
- Mycerobas
- Mycerobas Melanozanthos
- Mycerobas affinis
- Mycerobas carnipes
- Mycerobas carnipes merzbacheri
- Mycerobas icterioides
- Mycerobas melanozanthos
- Mycteria
- Mycteria americana
- Mycteria cinerea
- Mycteria ibis
- Mycteria leucocephala
- Myiagra
- Myiagra albiventris
- Myiagra alecto
- Myiagra alecto chalybeocephala
- Myiagra atra
- Myiagra azureocapilla
- Myiagra caledonica
- Myiagra castaneigularis
- Myiagra cervinicauda
- Myiagra cyanoleuca
- Myiagra erythrops
- Myiagra ferrocyanea
- Myiagra freycineti
- Myiagra galeata
- Myiagra hebetior
- Myiagra inquieta
- Myiagra nana
- Myiagra oceanica
- Myiagra pluto
- Myiagra rubecula
- Myiagra ruficollis
- Myiagra vanikorensis
- Myiagra vanikorensis kandavensis
- Myiarchus
- Myiarchus antillarum
- Myiarchus apicalis
- Myiarchus barbirostris
- Myiarchus cephalotes
- Myiarchus cinerascens
- Myiarchus cinerascens pertinax
- Myiarchus crinitus
- Myiarchus ferox
- Myiarchus ferox ferox
- Myiarchus magnirostris
- Myiarchus nugator
- Myiarchus nuttingi
- Myiarchus oberi
- Myiarchus panamensis
- Myiarchus phaeocephalus
- Myiarchus sagrae
- Myiarchus semirufus
- Myiarchus stolidus
- Myiarchus swainsoni
- Myiarchus tuberculifer
- Myiarchus tyrannulus
- Myiarchus tyrannulus bahiae
- Myiarchus tyrannulus tyrannulus
- Myiarchus validus
- Myiarchus venezuelensis
- Myiarchus yucatanensis
- Myiobius
- Myiobius atricaudus
- Myiobius barbatus
- Myiobius erythrurus
- Myiobius mastacalis
- Myiobius sulphureipygius
- Myiobius villosus
- Myioborus
- Myioborus albifacies
- Myioborus albifrons
- Myioborus brunniceps
- Myioborus cardonai
- Myioborus castaneocapilla
- Myioborus castaneocapillus
- Myioborus flavivertex
- Myioborus melanocephalus
- Myioborus miniatus
- Myioborus ornatus
- Myioborus pariae
- Myioborus pictus
- Myioborus torquatus
- Myiodynastes
- Myiodynastes bairdii
- Myiodynastes chrysocephalus
- Myiodynastes chrysocephalus cinerascens
- Myiodynastes hemichrysus
- Myiodynastes luteiventris
- Myiodynastes maculatus
- Myiodynastes maculatus maculatus
- Myiodynastes maculatus tobagensis
- Myiomela
- Myiomela albiventris
- Myiomela diana
- Myiomela leucura
- Myiomela major
- Myiopagis
- Myiopagis caniceps
- Myiopagis cotta
- Myiopagis flavivertex
- Myiopagis gaimardii
- Myiopagis gaimardii macilvaini
- Myiopagis gaimardii trinitatis
- Myiopagis ollalai
- Myiopagis subplacens
- Myiopagis viridicata
- Myioparus
- Myioparus griseigularis
- Myioparus plumbeus
- Myiophobus
- Myiophobus cryptoxanthus
- Myiophobus fasciatus
- Myiophobus flavicans
- Myiophobus inornatus
- Myiophobus lintoni
- Myiophobus ochraceiventris
- Myiophobus phoenicomitra
- Myiophobus pulcher
- Myiophobus roraimae
- Myiophonus
- Myiophonus blighi
- Myiophonus caeruleus
- Myiophonus glaucinus
- Myiophonus horsfieldii
- Myiophonus insularis
- Myiophonus melanurus
- Myiophonus robinsoni
- Myiopsitta
- Myiopsitta luchsi
- Myiopsitta monachus
- Myiornis
- Myiornis albiventris
- Myiornis atricapillus
- Myiornis auricularis
- Myiornis ecaudatus
- Myiornis ecaudatus miserabilis
- Myiotheretes
- Myiotheretes fumigatus
- Myiotheretes fuscorufus
- Myiotheretes pernix
- Myiotheretes striaticollis
- Myiothlypis
- Myiothlypis basilica
- Myiothlypis bivittata
- Myiothlypis bivittatus
- Myiothlypis chrysogaster
- Myiothlypis chrysogaster chlorophrys
- Myiothlypis cinereicollis
- Myiothlypis conspicillata
- Myiothlypis conspicillatus
- Myiothlypis coronata
- Myiothlypis coronatus
- Myiothlypis flaveola
- Myiothlypis flaveolus
- Myiothlypis fraseri
- Myiothlypis fulvicauda
- Myiothlypis griseiceps
- Myiothlypis leucoblephara
- Myiothlypis leucoblepharus
- Myiothlypis leucophrys
- Myiothlypis luteoviridis
- Myiothlypis nigrocristata
- Myiothlypis nigrocristatus
- Myiothlypis rivularis
- Myiothlypis roraimae
- Myiothlypis signata
- Myiothlypis signatus
- Myiotriccus
- Myiotriccus ornatus
- Myiotriccus ornatus stellatus
- Myiozetetes
- Myiozetetes cayanensis
- Myiozetetes cayanensis rufipennis
- Myiozetetes granadensis
- Myiozetetes granadensis obscurior
- Myiozetetes luteiventris
- Myiozetetes similis
- Myophonus
- Myophonus blighi
- Myophonus borneensis
- Myophonus caeruleus
- Myophonus castaneus
- Myophonus glaucinus borneensis
- Myophonus horsfieldii
- Myophonus robinsoni
- Myornis
- Myornis lessoni lessoni
- Myornis senilis
- Myrmeciza
- Myrmeciza atrothorax
- Myrmeciza berlepschi


