ornithology

noun

1. (countable, uncountable)The branch of zoology that deals with the scientific study of birds.

   “Gesner says in his Ornithology, that this fact was attested by a great many moderns of his own time, and he even quotes Albert the great, who asserts that he has seen a cock foster chickens.”

   “Jerome A. Jackson, an ivory bill specialist at Florida Gulf Coast University in Fort Myers, has now increased the intensity of the discussion in a 15-page article in the current issue of The Auk, a quarterly ornithology journal published by the American Ornithologists' Union.”