Category:Bird
Revision as of 10:41, 6 September 2018 by GerdIsenberg (talk | contribs) (Created page with "FILE:Birdmorphology.svg|border|right|thumb|link=https://en.wikipedia.org/wiki/Bird_anatomy|External anatomy (topography) of a typical bird: 1 Beak, 2 Head, 3 Iris, 4 Pupil,...")
Birds are a group of endothermic vertebrates, 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.
Pages in category "Bird"
The following 31 pages are in this category, out of 31 total.