Outline of birds explained

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 5sigfig=1NaNsigfig=1 bee hummingbird to the 2.75sigfig=1NaNsigfig=1 ostrich.

What type of thing is a bird?

A bird can be described as all of the following:

Biological classification

Nature of birds

Bird

Bird anatomy

Bird anatomy

Bird behavior

Bird behavior

Types of birds

Genera

History of birds

Study of birds

See main article: article.

See main article: category.

Aviculture

Aviculture

Bird diseases and parasites

See main article: category.

Threats and conservation

Persons influential in the field of birds

Artists

See main article: category.

Ornithologists

List of ornithologists

Writers

Birds in culture

See also

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