State any four characteristics of members belonging to class Aves.

Explanation

i.The members of class Aves are completely adapted for aerial life.
ii. They are homeotherms i.e., they can maintain a constant body temperature.
iii. Their body is spindle-shaped, to reduce air resistance during flight.
iv. Forelimbs are modified into wings. Digits are provided with claws and are covered with scales.
v. Jaws are modified into beak.
vi.Neck is present between the head and trunk.
vii. Exoskeleton is in the form of feathers. For e.g. Peacock, parrot, pigeon, duck, penguin, etc.