Question

D. Answer the following questions in brief.
1. What do birds use for preening their feathers?
2. How is a crushing beak helpful to a pigeon?
3. What are claws?
4. Name three birds of prey.
5. What prevents the body of crane and jacana from sinking in water?​

Answer 1

Answer:

1)The uropygial gland, or preen gland, is an essential part of preening. This gland is found near the base of the tail and produces an oily, waxy substance that helps waterproof feathers and keep them flexible. While preening, birds spread this oil to each feather so they are evenly coated and protected.

2)Ans:A crushing beak is a short and hard beak.It helps the pigeon for crushing seeds and grains . so that the seeds will soft for eating.

3)curved pointed horny nail on each digit of the foot in birds, lizards, and some mammals.

4)Accipitridae: hawks, eagles, buzzards, harriers, kites, and Old World vultures.

Pandionidae: the osprey.

Sagittariidae: the secretarybird.

5)Ans:The wide spreading toes of crane & jacana help them from sinking in water.

Answer 2

Answer:

What do birds use for preening their feathers