Give the characteristics of the following with examples :
Class Aves (Birds)

Explanation

(i) Aves are completely adapted for aerial mode of life.
(ii) Their body is spindle shaped to minimize air resistance during flight.
(iii) Forelimbs are modified into wings. Digits are covered with scales and bear claws.
(iv) The exoskeleton is made up of feathers.
(v) Jaws are modified into beak.
(vi) They are u.nisexual, oviparous animals.
(vii) They are warm blooded (Homeotherm) animals. e.g. Peacock, parrot, pigeon, duck, penguin, etc.