. A dictionary of birds . e from theshortness of its wings to fly. In connexion with this loss of powermay also be noted the dwindling of the keel of the sternum. Birds of the genera Chenalopex (the Egyptian and Orinoco Geese), Plectropterus, Sarcidiornis, Chlamydochen, and some others, are commonly called Geese. To the writer it seems almost certain that they are allied to the Sheld-drake. The males of all appear to have that curious enlargement at the junction of the bronchial . tubes and the trachea which is so characteristic of the Ducks or ,icN Anatinse and is wanting in the Anserinx or t
. A dictionary of birds . e from theshortness of its wings to fly. In connexion with this loss of powermay also be noted the dwindling of the keel of the sternum. Birds of the genera Chenalopex (the Egyptian and Orinoco Geese), Plectropterus, Sarcidiornis, Chlamydochen, and some others, are commonly called Geese. To the writer it seems almost certain that they are allied to the Sheld-drake. The males of all appear to have that curious enlargement at the junction of the bronchial . tubes and the trachea which is so characteristic of the Ducks or ,icN Anatinse and is wanting in the Anserinx or true Geese. As much fV^/ may be said for the genus NettapViS. ^ Its portraits are recognizable in what is said to be one of the oldest picturesin the world see (Introduction). GORCOCK—GO URA 377 GORCOCK, a Scottish name for the male of the Eed Grouse. GOS-HAWK, ornithologists, Falconry. Its and the largest English Goose-Hawk,of thehowever the Astur of name, palumhariususedhas possibly been trans short-winged Hawks m. Gos-Hawk. (After Swainson.) comparatively shorter than ferred to this species from one of the long-winged Hawks, or trueFalcons, since there is no tradi-tion of the Gos-Hawk, now socalled, having ever been used inEurope to take Geese or otherlarge and powerful birds. Thegenus Adur may be readily dis-tinguished from Falco by thesmooth edges of its beak, itsshort wings (not reaching beyondabout the middle of the tail),and its long legs and toes—• though these last are stout and comparatively snorter tnan mthe Sparrow-Hawks, Accipiter. In plumage the Gos-Hawk hasa general resemblance to the Peregiine Falcon, and it undergoes acorresponding change as it advances from youth to maturity—theyoung being longitudinally streaked beneath, while the adults aretransversely barred. The irides, however, are always yellow, or inold birds orange, Avhile those of the Falcons are dark broAvn. Thesexes differ greatly in size. There can be little doubt that theGos-Hawk, now
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Keywords: ., bookauthorlyde, bookcentury1800, bookdecade1890, booksubjectbirds
