bn:00010605n
Noun Concept
Categories: Articles with 'species' microformats, Animal classes, Articles containing Māori-language text, Dinosaurs, Articles with short description
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 & Open English WordNet
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
Feathered, winged, bipedal, warm-blooded, egg-laying, vertebrate. Wikipedia Disambiguation
A winged, egg-laying, vertebrate animal. Wikipedia Disambiguation
Class of vertebrates characterized by wings, a feather-covered body and a beak Wikidata
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