Feathers of the birds are waterproof due to the oil secretion of

Question

Feathers of the birds are waterproof due to the oil secretion of

1. A. mucus glands
2. B. uropygial glands (Correct answer)
3. C. sudorific glands
4. D. green glands

Correct Answer

Option B — uropygial glands

Detailed Solution & Explanation

The correct answer is uropygial glands.

Key Points

• The uropygial gland (preen gland) located at the base of the tail secretes oil that birds spread over their feathers during preening, making them waterproof.