. The biology of birds. Birds. FOOD AND ITS UTILISATION 97 Adaptations o! the Feet.—Most of the special adapta- tions of birds' feet have, of course, to do with walking, running, hopping, climbing, swimming, and perching, but. Fig. 23.—Various types of feet in birds, i, shag (swimming); 2, crow (perching, lifting); 3, ptarmigan (stockinged in feathers); 4, jungle fowl (walking, scraping); 5, coot (lobate, swimming) ; 6,jacana (suited for walking on floating plants); 7, sea-eagle (raptorial). some have to do with food-catching. The parrot uses its foot as a hand, picking up its food and holding
. The biology of birds. Birds. FOOD AND ITS UTILISATION 97 Adaptations o! the Feet.—Most of the special adapta- tions of birds' feet have, of course, to do with walking, running, hopping, climbing, swimming, and perching, but. Fig. 23.—Various types of feet in birds, i, shag (swimming); 2, crow (perching, lifting); 3, ptarmigan (stockinged in feathers); 4, jungle fowl (walking, scraping); 5, coot (lobate, swimming) ; 6,jacana (suited for walking on floating plants); 7, sea-eagle (raptorial). some have to do with food-catching. The parrot uses its foot as a hand, picking up its food and holding it to the II. 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 Thomson, J. Arthur (John Arthur), 1861-1933. New York : Macmillan
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbirds, bookyear1923
