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The bird fauna of a region.

[Greek] The bird fauna of a region (zool.).

or'nis, n. the birds collectively of a region, its avifauna.--adj. ORNITH'IC.--ns. ORNITHICH'NITE (geol.), the footmark of a bird found impressed on sandstone, &c.; ORNITHODEL'PHIA, the lowest of the three sub-classes of mammals, same as Monotremata--from the ornithic character of the urogenital organs.--adjs. ORNITHODEL'PHIAN (also n.), ORNITHODEL'PHIC, ORNITHODEL'PHOUS; OR'NITHOID, somewhat ornithic.--ns. ORNITH'OLITE (geol.), the fossil remains of a bird: a stone occurring of various colours and forms bearing the figures of birds.--adj. ORNITHOLOG'ICAL, pertaining to ornithology.--adv. ORNITHOLOG'ICALLY.--ns. ORNITHOL'OGIST, one versed in ornithology, or who makes a special study of birds; ORNITHOL'OGY, the science and study of birds; OR'NITHOMANCY, divination by means of birds, by observing their flight, &c.--adjs. ORNITHOMAN'TIC; ORNITHOPH'ILOUS, bird-fertilised; OR'NITHOPOD, ORNITHOP'ODOUS, having feet like a bird.--ns. ORNITHORHYN'CHUS, an animal in Australia, with a body like an otter and a snout like the bill of a duck, also called Duck-bill; ORNITHOS'COPY, observation of birds or of their habits; ORNITHOT'OMY, the act of dissecting birds. [Gr. ornis, ornithos, a bird.]