. The birds of South Africa. Birds. OTIDJB OTIS 289 Key of the Species. A. Very large; wing 23 to 31 inches; head strongly crested; neck transversely banded with black and white 0. ^oW, p. 808. B. Large; wings 17 to 23 inches ; head not conspicuously crested. a. Tail with white cross-bands; back with- out arrow-shaped markings 0. caffra, p. 300. 6. Tail with buffy-mottled cross-bands ; back with arrow-shaped markings of sandy- buff 0. ludivigi, p. Pig. 94.—Left foot of Otis afra. x i C. Smaller ; wings less than 15 inches. a. Beneath black, at least on the lower breast and abdomen, o'. W
. The birds of South Africa. Birds. OTIDJB OTIS 289 Key of the Species. A. Very large; wing 23 to 31 inches; head strongly crested; neck transversely banded with black and white 0. ^oW, p. 808. B. Large; wings 17 to 23 inches ; head not conspicuously crested. a. Tail with white cross-bands; back with- out arrow-shaped markings 0. caffra, p. 300. 6. Tail with buffy-mottled cross-bands ; back with arrow-shaped markings of sandy- buff 0. ludivigi, p. Pig. 94.—Left foot of Otis afra. x i C. Smaller ; wings less than 15 inches. a. Beneath black, at least on the lower breast and abdomen, o'. With a very distinct nuchal crest of vinous red in the male; back with arrow - shaped markings of sandy- rufous O. rufcrista, p. 290. &'. Without a conspicuous crest. a^. Throat and neck black all round. a'. Quill-lining black 0. a/ra, J*, p. 292. 6'. Quill-lining white O. afroides, ^, ^. 294. V\ Throat black, connected with the black breast only by a narrow line a'. Bump and tail freckled buff like the upper back , J*, p. 302. 6^. Rump and tail black contrasting with the back 0. ^acMattii, p. 304. c'. Throat and neck not black but mottled and cross-barred, black and sandy, like the back. 19 VOL. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Stark, Arthur Cowell, d. 1899; Sclater, William Lutley, 1863-1944; Sclater, William Lutley, 1863-1944. Fauna of South Africa. London, R. H. Porter
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