Question

9. A bird which makes its nest in a tree hole, lays eggs
and then seals off the opening till the chicks hatch​

Answer 1

Explanation:

the bird which makes it's nest in a tree hole, lays eggs and then seals off the opening till the chicks hatch is Hornbills.

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Answer 2

Answer : Hornbills is the correct answer.

I hope it is useful for u.....