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 bee hummingbird to the ostrich. Birds evolved from earlier theropods, and thus constitute the only known living dinosaurs.
What type of thing is a bird? A 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
Kingdom: Animalia Phylum: Chordata Clade: Dinosauria Clade: Theropoda Clade: Ornithurae Class: Aves
Nature of birds
Bird
Bird anatomy
Bird anatomy List of terms used in bird topography Beak Caruncle Comb Feathers Alula Barb (feather) Barbule Covert (feather) Crest (feathers) Down feather Ear tuft Feather holes Feather-plucking Flight feather Pennaceous feather Pin feather Plumage Quill Speculum feather Gape Gizzard Preen gland Syrinx Vision Nictitating membrane Pecten oculi Uropygial gland Wattle
Bird behavior
Bird behavior Bird colony Feeding Feeding of birds Food plants Gleaning (birds) Hawking Hoarding Pellet (ornithology) Plucking post Flight Flightless birds Flocking Migration Flyway Atlantic Flyway Central Flyway Central Asian Flyway East Asian - Australasian Flyway East Atlantic Flyway Mississippi Flyway Pacific Flyway West Pacific Flyway Pigeon intelligence Abnormal behaviour of birds in captivity Aggression Anting (bird activity) Begging behavior in birds Distraction display Dust bathing Feather-plucking Fecal sac Intelligence Mobbing Moult Preening Reproduction Avian incubation Bird-nesting Brood parasite Clutch (eggs) Egg Egg tossing Fledgling Homosexual behavior in birds List of birds displaying homosexual behavior Sexual behaviour Nest Altricial Nest box Precocial Siblicide Roosting Communal roosting Tracks Vocalization Sonation
Types of birds
Orders
Families
Subfamilies
Genera
History of birds
Bird evolution Origin of birds Origin of avian flight Feathered dinosaurs Archaeopteryx Extinct birds
Study of birds
Avian ecology field methods Bird census Breeding bird survey Christmas Bird Count Bird collections Bird feeding Bird feeder Bird food Mealworm Niger Safflower Suet Sunflower seed Bird ichnology Bird tracks Bird observatory Bird ringing Cannon net Mist net Bird watching Bird hide Field guide Field mark List of birdwatchers List of birding books Seawatching List of seawatching locations by country Oology Jourdain Society Palaeooölogy
Aviculture
Aviculture Falconry Day-old cockerel Falconry (training) Lure (falconry) Takagari Pigeon racing Pinioning War pigeon Cher Ami Commando (pigeon) G. I. Joe (pigeon) Paddy (pigeon) William of Orange (pigeon) Wing clipping
Bird diseases and parasites
Aspergillosis Avian influenza Avian malaria Bird louse Feather mite Psittacosis
Threats and conservation Avicide Bird conservation Bird sanctuary Bird conservation groups Bird Protection Quebec BirdLife International Fundación ProAves National Audubon Society Royal Society for the Protection of Birds Important bird areas Bird control Bird control spike Bird netting Bird scarer Goose egg addling Scarecrow Bird strike Towerkill
Persons influential in the field of birds
Artists
James Audubon Lars Jonsson David Allen Sibley
Ornithologists
List of ornithologists John Gould James Clements James Audubon Chris Mead Killian Mullarney Roger Tory Peterson Pamela C. Rasmussen Alexander Skutch David Snow Alexander Wilson
Writers Mark Cocker Pete Dunne
Birds in culture Featherwork Quill
See also
Dinosaur Outline of dinosaurs
References
External links