Duck and Goose have ________________ feet.

This nest is of -

The birds that use their claws to hold the branches of tree are called ___________________ birds

Emu is a _______________________ bird.

__________________ make their nest on the ground with few stones or pebbles.

Which of these birds have a hook-shaped beak ?

Which of the following uses its beak like a needle to make its nest ?

_________________ can sleep while flying.

__________________ can continuously fly for almost 200 days without stopping.