. The descent of man, and selection in relation to sex. Evolution; Natural selection; Heredity; Human beings. Ohap. XIII. Vocal Music. 373 It seems now well made out that the great throat pouch of the European male bustard (Otis tarda), and of at least four other species, does not, as was formerly supposed, serve to hold water, but is connected with the utterance during the breeding-. Fig. 40. The Umbrella-bird or CephalopteruB ornatiis (mal^', from Brehm'J, season of a peculiar sound resembling " ;*^ A crow-like bird inhabiting South America (Cephalopterus ornntus, fig. 40) is c
. The descent of man, and selection in relation to sex. Evolution; Natural selection; Heredity; Human beings. Ohap. XIII. Vocal Music. 373 It seems now well made out that the great throat pouch of the European male bustard (Otis tarda), and of at least four other species, does not, as was formerly supposed, serve to hold water, but is connected with the utterance during the breeding-. Fig. 40. The Umbrella-bird or CephalopteruB ornatiis (mal^', from Brehm'J, season of a peculiar sound resembling " ;*^ A crow-like bird inhabiting South America (Cephalopterus ornntus, fig. 40) is called the umbrellarbird, from its immense top-knot, formed of *^ The following papers liave In this latter paper an excellent been lately written on this subject: figure is given of the male Austra- Prof. A. Newton, in the ' Ibis,' lian Bustard in full display with 1862, p. 107; Dr. CuUen. ibid. 18K5, the sack distended. It is a singular p. 145; Mr. Flower, in ' Proc. Zool. fact that the sack is not developed in Soc' 1865, p. 747 ; and Dr. Murie, all the males of the same species. in ' Proc. Zool. Soc' 1868, p. 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 Darwin, Charles, 1809-1882. New York, D. Appleton and Company
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