Outline of birds

House sparrow, Passer domesticus

The following outline is provided as an overview of and topical guide to birds:

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

A bird can be described as all of the following:

Biological classification

Cladogram showing the most recent classification of Neoaves, based on several phylogenetic studies.
Further information: Biological classification

Nature of birds

Bird

Bird anatomy

External anatomy (topography) of a typical bird: 1 Beak, 2 Head, 3 Iris, 4 Pupil, 5 Mantle, 6 Lesser coverts, 7 Scapulars, 8 Coverts, 9 Tertials, 10 Rump, 11 Primaries, 12 Vent, 13 Thigh, 14 Tibio-tarsal articulation, 15 Tarsus, 16 Feet, 17 Tibia, 18 Belly, 19 Flanks, 20 Breast, 21 Throat, 22 Wattle, 23 Eyestripe

Bird anatomy

Bird behavior

Bird behavior

Types of birds

Orders

Families

Subfamilies

Genera

History of birds

Study of birds

Main articles: Ornithology

Aviculture

Aviculture

Bird diseases and parasites

Threats and conservation

Persons influential in the field of birds

Artists

Ornithologists

List of ornithologists

Writers

Birds in culture

See also

References

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