Class

Aves (Birds)

Falco peregrinus. Photo: (c) Carlos Delgado, some rights reserved (CC BY-SA)

Birds (Aves) 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. Birds live worldwide and range in size from the 5 cm (2 in) bee hummingbird to the 2.75 m (9 ft) ostrich. They rank as the class of tetrapods with the most living species, at approximately ten thousand, with more than half of these being passerines, sometimes known…

— Wikipedia

Subtaxa

Where in Humboldt



Discussion

PLEASE SHARE YOUR THOUGHTS ABOUT AVES, THE BIRDS