. Cassell's natural history . The Divers nearly resemble the grebes, from which they differ but little, except in theirpalmated feet. Like them, too, while on the land they are beset with diiHculties in theirlocomotions ; on the water, they are entirely at ease. • Mergus. 592 THE FEATHERED TRIBES. In these birds the legs are situated more posteriorly thau they are in any other causes their walking to be painful, and obliges them, when on shore, to preserve avertical position. As, moreover, the greater part of them are bad fliers, and as many ofthem cannot flj at all, on account of th
. Cassell's natural history . The Divers nearly resemble the grebes, from which they differ but little, except in theirpalmated feet. Like them, too, while on the land they are beset with diiHculties in theirlocomotions ; on the water, they are entirely at ease. • Mergus. 592 THE FEATHERED TRIBES. In these birds the legs are situated more posteriorly thau they are in any other causes their walking to be painful, and obliges them, when on shore, to preserve avertical position. As, moreover, the greater part of them are bad fliers, and as many ofthem cannot flj at all, on account of the extreme shortness of their ■wings, they may beconsidered as almost exclusively confined to the surface of the water. In consequence offliis their plumage is closer, and it often presents a smooth surface, with a silverybrightness. They swim under water with the help of their wings, almost in themanner of fins, They have a peculiar muscle on each side the lower larynx. THE GREAT KORTHEKN D1\ER.* This bird is about two fe
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectbirds, bookyear1854
