Question

What is aves??????............
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Answer 1

Aves:

• Aves is a term used to indicate birds.

Features of Aves:

• They have feathers.

• Most of them can fly, except flightless birds like Ostrich.

• They have beak

• Their fore limbs are modified into wings.

• The hind limbs have scales

• The hind limbs help them for walking, swimming or clasping branches.

• They have hollow bones with air cavities.

• Heart is four chambered.

• Respiration is by lungs.

• Air sacs are connected to lungs

• They are oviparous

• Their skin is dry.

• They don't have gland except at the base of tail.

• Their digestive tract has additional chambers.

• They are warm blooded.

eg:- Crow (Corvus), Peacock (Pavo)