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countable and uncountable, plural ornithologies
The branch of zoology that deals with the scientific study of birds. quotations examples
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.
1750, René Antoine Ferchault de Réaumur, The Art of Hatching and Bringing Up Domestick Fowls of All Kinds at Any Time of the Year