. A history of British birds, indigenous and migratory: including their organization, habits, and relations; remarks on classification and nomenclature; an account of the principal organs of birds, and observations relative to practical ornithology .. . erent in formand disposition, with stronger claws all so directed that thebird can cling very securely even to a perpendicular to the extreme shortness of their feet, they are unableto walk, unless with a most constrained and hobbling gait,with the aid of their wings, the extreme length of which com-bined with the form of the feet
. A history of British birds, indigenous and migratory: including their organization, habits, and relations; remarks on classification and nomenclature; an account of the principal organs of birds, and observations relative to practical ornithology .. . erent in formand disposition, with stronger claws all so directed that thebird can cling very securely even to a perpendicular to the extreme shortness of their feet, they are unableto walk, unless with a most constrained and hobbling gait,with the aid of their wings, the extreme length of which com-bined with the form of the feet, prevent them from risingfrom a flat horizontal surface, so that they never settle on theground, but alight only on such places as present a brink or de-clivity from the edge of which they can launch forth in a flight is extremely rapid, and on wing they perform themost aburpt turns and the most varied evolutions, with thegreatest ease. They nestle in holes in buildings, or in crevicesof rocks, forming their nest of materials gathered on wing. Only two species occur in Europe, of which one is generallydistributed in Britain. Two or three individuals of the otherhave been killed in England. 611 CYPSELUS MELBA. THE Hirundo Melba. Linn. Syst. Nat. I. 345. Hirundo major hispanica. Briss. Av. II. 504. Hirundo Melba. Lath. Ind- Orn. 11. 582. Martinet a ventre blanc. Cypselus alpinus. Teram. Man. dOrn. I. Alpine Swift. Cypselus alpinus. Selb. lUustr. I. 127. Cypselus alpinus. Alpine Swift. Jen. Brit. Vert. An. 159. 433. All the upper parts^ together icith the sides and loicer part ofthe nech, the sides of the body, legs, and lower wing and tail-coverts, greyish-brown ; the rest white; length to end of tailabout nine inches. Male.—In form and proportions the White-bellied Swiftresembles the common species, having the body moderately stout,theneckshort, thehead rather largeand depressed ; thebillsome-what more slender and elongated, its upper
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Keywords: ., bookcentury1800, bookidhistoryofbr, booksubjectbirdsgreatbritain
