• Marsh Wren
• Marshall Islands
• Marshall's Iora
• Martial Eagle
• Martian
• Martinique
• Martinique Oriole
• Marvantsetra Warbler
• Marvellous Spatuletail
• Marxism
• Marxist
• Maryland
• Masafuera rayadito
• Mascarene Black Petrel
• Mascarene Fody
• Mascarene Martin
• Mascarene Paradise Flycatcher
• Maseru
• Mashhad
• Masked Apalis
• Masked Crimson Tanager
• Masked Duck
• Masked Finch
• Masked Finfoot
• Masked Fire Finch
• Masked Flowerpiercer
• Masked Gnatcatcher
• Masked Hawfinch
• Masked Lark
• Masked Lovebird
• Masked Mountain Tanager
• Masked Plover
• Masked Saltator
• Masked Shining Parrot
• Masked Shrike
• Masked Tanager
• Masked Tityra
• Masked Trogon
• Masked Water Tyrant
• Masked Wood Swallow
• Masked Yellowthroat
• Masonic
• Masonic lodge
• Masonry
• Massachusetts
• Master of Business and Engineering
• Matinan Niltava
• Matsudaira's Storm Petrel
• Matto Grosso Antbird
• Maui Creeper
• Maui Parrotbill
• Maundy Thursday
• Mauritania
• Mauritian
• Mauritius
• Mauritius Fody
• Mauritius Greybird
• Mauritius Kestrel
• Mauritius Olive White-eye
• Mauritius Parakeet
• Maximize your effectiveness!
• Maxwell diagramm
• Maxwell's Black Weaver
• May
• May Day
• May I ask why?
• May I bother you a moment?
• May I bring up the question of ...?
• May I have a word with you?
• May I have the floor.
• May I have the next dance?
• May I have your name?
• May I introduce ...
• May I introduce Mr. Brown to you?
• May I introduce you to each other?
• May I join you?
• May I see him?
• May I speak to him?
• May I take a look at it?
• May I talk to you privately?
• May I trouble you for ...
• May I trouble you for a match?
• May I? - Please do!
• May she be ever so beautiful.
• May there always be water beneath your keel.
• May your days be full of joy.
• Mayday
• Mayotte
• Mayotte Drongo
• Mayotte Sunbird
• Mayr's Chestnut Rail
• Mayr's Streaked Honeyeater
• Mazar-e Sharif
• Mbabane
• Mbuji-Mayi
• McConnell's Spinetail
• McCown's Longspur
• McKay's Bunting
• Me Incorporated
• Meadow Pipit