bn:00010605n
Noun Concept
Categories: Articles with 'species' microformats, Birds, Articles containing Māori-language text, Dinosaurs, Santonian first appearances
EN
bird  Eu-  Avafauna  Aves  Aviala
EN
Warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings WordNet 3.0
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EN
Warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings WordNet 3.0 & WordNet 2020
Birds are a group of warm-blooded vertebrates constituting the class Aves, characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweight skeleton. Wikipedia
A winged, egg-laying, vertebrate animal. Wikipedia Disambiguation
Any of the bipedal, warm-blooded vertebrates that lay eggs having wings which, for most species, enables them to fly. OmegaWiki
A member of the class of animals Aves in the phylum Chordata, characterized by being warm-blooded, having feathers and wings usually capable of flight, and laying eggs. Wiktionary
EN
Ducks and sparrows are birds. Wiktionary