. The bird; its form and function . Fig. 212. —King of Saxony Bird of Paradise. (From a photograph providedby the American Musevim of Natural History.) In the Double-crested Pigeon of Australia the coreor fleshy covering of the beak is completely feathered;while some of the birds known as plantain-eaters arefeathered to the very tip of the short beak with plumesof delicate green, tipped with white. The extreme offeathering is shown by the Cock-of-the-Rock, in which Heads and Necks 271 the whole beak, in fact every part of the head except theeyes, is buried in a maze of soft, orange plumes. As
. The bird; its form and function . Fig. 212. —King of Saxony Bird of Paradise. (From a photograph providedby the American Musevim of Natural History.) In the Double-crested Pigeon of Australia the coreor fleshy covering of the beak is completely feathered;while some of the birds known as plantain-eaters arefeathered to the very tip of the short beak with plumesof delicate green, tipped with white. The extreme offeathering is shown by the Cock-of-the-Rock, in which Heads and Necks 271 the whole beak, in fact every part of the head except theeyes, is buried in a maze of soft, orange plumes. As the antithesis to this condition, we find manybirds which have the head partly or entirely bare offeathers, such as the vultures and some of the waders. In the former gioup this lack of feathers is doubtless. Fig. 213.—Head of male Condor of value in enabling the birds to avoid soiling their plu-mage, when engaged in their scavenger work. The greatCondor of South America has, just below this naked area,a necklace of the whitest of fluffy down, and in additionthe male has a large wattle of skin upon the front of thehead. The Caracara of Mexico is partly vulturine in itshabits, and the feathers have disappeared from part ofits face. Wherever the skin of the head and neck is even 272 The Bird
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbirds, bookyear1906
