Question

write adaptive features of bird (any four)​

Answer 1

1. They have hollow bones also called pneumatic bones.
2. They have feathers which help them to stay in the air.
3. Their bones are light weight.
4. They have streamlined body to fly in air.

    Additional points :

• They are viviparous.
• They have oil glands.
• They can migrate during unsuitable conditions.