The following outline is provided as an overview of and topical guide to birds:
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Birds (class Aves) – winged, bipedal, endothermic (warm-blooded), egg-laying, vertebrate animals. There are around 10,000 living species, making them the most varied of tetrapod vertebrates. They inhabit ecosystems across the globe, from the Arctic, to the Antarctic. Extant birds range in size from the 5 cm (2 in) bee hummingbird to the 2.75 m (9 ft) ostrich.
What type of thing is a bird?
editA bird can be described as all of the following:
- Life form – entity or being that is living or alive.
- Animal – multicellular, eukaryotic organisms of the kingdom Animalia (also called Metazoa). Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later on in their lives. Most animals are motile, meaning they can move spontaneously and independently.
Biological classification
editNature of birds
editBird anatomy
edit- List of terms used in bird topography
- Beak
- Caruncle
- Comb
- Feathers
- Gape
- Gizzard
- Preen gland
- Syrinx
- Vision
- Uropygial gland
- Wattle
Bird behavior
editBird behavior
Types of birds
editOrders
editFamilies
editSubfamilies
editGenera
editHistory of birds
editStudy of birds
editAviculture
editBird diseases and parasites
editThreats and conservation
editPersons influential in the field of birds
editArtists
editOrnithologists
edit- John Gould
- James Clements
- James Audubon
- Chris Mead
- Killian Mullarney
- Roger Tory Peterson
- Pamela C. Rasmussen
- Alexander Skutch
- David Snow
- Alexander Wilson