- Madagascar Buzzard
- Madeira Chaffinch
- Maghreb Magpie
- Magnificent Frigatebird
- Magnolia Warbler
- Magpie Tanager
- Malachite Kingfisher
- Malagasy Bulbul
- Malagasy Kestrel
- Malagasy Turtle Dove
- Malagasy White-eye
- Malaysian Pied Fantail
- Malaysian Plover
- Mallard
- Mandarin Duck
- Mangrove Cuckoo
- Mangrove Warbler
- Marabou Stork
- Marquesan Swiftlet
- Marsh Sandpiper
- Marsh Warbler
- Mascarene Martin
- Masked Booby
- Masked Tityra
- Mauritius Fody
- Mauritius Grey White-eye
- Mauritius Kestrel
- Meadow Pipit
- Mealy Amazon
- Mediterranean Gull
- Medium Egret
- Melodious Blackbird
- Melodious Warbler
- Menetries's Warbler
- Merlin
- Meves's Starling
- Meyer's Parrot
- Milky Stork
- Mistle Thrush
- Monk Parakeet
- Morelet's Seedeater
- Mourning Collared Dove
- Mourning Dove
- Moussier's Redstart
- Muscovy Duck
- Mute Swan
- Myrtle Warbler