- Madeira Chaffinch
- Madeira Firecrest
- Magpie Shrike
- Malachite Kingfisher
- Mallard
- Mandarin Duck
- Mangrove Swallow
- Marabou Stork
- Marico Flycatcher
- Martial Eagle
- Masked Tityra
- Meadow Pipit
- Meves's Starling
- Mexican Violetear
- Meyer's Parrot
- Mistle Thrush
- Mistletoe Tyrannulet
- Montezuma Oropendola
- Mountain Caracara
- Mourning Sierra Finch
- Mute Swan