Birds are a group of warm-blooded vertebrates constituting the class Aves (/ˈeɪviːz/), 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.
Why is it called bird?
During the Middle English period, Chaucer used the word inconsistently, spelling it variously b-r-i-d (yes, that’s brid) and b-y-r-d. The meaning varied, too–the word originated from the Anglo Saxon word “bredan,” meaning “to breed,” which gave “bird” its original meaning–a young bird (what we now call a chick).
What is bird in simple words?
A bird is an animal with wings, feathers, and two legs. Birds, from chickens to crows, are also warm-blooded and lay eggs. Most birds can fly using their wings, and when you visit the coast you’ll see various sea birds like gulls, terns, and cormorants.
What are bird animals called?
Organisms within the animal kingdom are categorised into many other smaller groups. Birds are in a group called ‘Aves’. A big group of animals like ‘Aves’ is known as a ‘Class’. Animals in the class Aves are warm-blooded, have feathers and beaks, and lay eggs.
