Yahoo India Web Search

Search results

  1. 19 hours ago · The top, or upper, side of a bird's wing. [ 433 ]Compare: underwing. uropygial gland. Also, preen gland; oil gland. A gland found at the rump, at the base of the tail that produces a waxy secretion made up of oils, fatty acids, fats and water that the majority of birds use in daily preening of their feathers.

  2. People also ask