. Une histoire des oiseaux britanniques, indigènes et migrateurs: Y compris leur organisation, leurs habitudes et leurs relations; des remarques sur la classification et la nomenclature; un compte rendu des principaux organes des oiseaux, et des observations relatives à l'ornithologie pratique .. . n formaland disposition, Nvith plus fortes griffes toutes ainsi dirigées que l'oiseau peut s'accrocher très solidement même à une surface perpendiculaire.en raison de l'extrême brièveté de leurs pieds, ils sont imabloto marche, à moins avec une démarche la plus contrainte et hobblinfi, avec l'aide de leurs ailes, la longueur extrême dont com-bined avec la forme des pieds, préc

• Contributeur: Reading Room 2020 / Alamy Banque D'Images
• ID de l’image: 2CP68C3
• Taille du fichier: 7,1 MB (203,7 KB Téléchargement compressé)
• Autorisations: Modèle - non | Propriété - non
• Dimensions: 1627 x 1535 px | 27,6 x 26 cm | 10,8 x 10,2 inches | 150dpi

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. A history of British birds, indigenous and migratory: including their organization, habits, and relation; remarks on classification and nomenclature; an account of the principal organs of birds, and observations relative to practical ornithology .. . n formand disposition, Nvith stronger claws all so directed that thobird can cling very securely even to a perpendicular surface.Owing to the extreme shortness of their feet, they are imabloto walk, unless with a most constrained and hobblinfi 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 ])laces as jiresent a brink or de-clivity from the edge of which they can launch forth in a curve.Their flight is extremely raj)id, and on wing they perform thomost aburpt turns and the most varied evolutions, with thegreatest ease. 1hey 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 Tiritain. Two or three individuals of the otherhave been killed in England. till CYPSELUS MELBA. THE WHITE-BELLIEDSWIFT.. Fig. 271. Hiruiulo Melba. Linn. Syst. Nat. I. 31.i. lUruiido major hispanica. Biiss. Av. II. .>fll. Hinindo Mclba. Lath. IiiJ. Orn. II. .)S2. Martinet a ventre blanc. Cypselus alpinus. Temm. Man. dOrn. I. 4.33. Alpine Swift. Cypselus alpinus. Selb. lUustr. I. 12. Cypselus alpinus. Alpine Swift. Jen. Brit. Vert. An. 159. All the upper parts, together tcith the sides and louer part ofthe 7ieck, the sides of the body, legs, and lower icing and tail-coverts, gregish-broini; the rest ichite; length to end of tailabout nine inches. Male.—In form and proportions the White-bellied Swiftresembles the common species, havinp: the bodymoderatelystout, thencckshort, thehead rather large and depressed ; thebillsome-what more slender and elongated

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