 ... meantime the other bird keeps up a loud noise that sounds somewhat like the neighing of a horse. The bird taking the lead then walks around his partner, stepping high, like a negro cakewalker. This part of the procedure is usually closed by one or...  The Wilson Bulletin - Стр. 1721916Полный просмотр - Подробнее о книге
 | 1912 - Страниц: 832
...of the procedure is usually closed by one or both birds pointing their beaks straight up in the air, rising on their toes, puffing out their breasts, and...thing is repeated many times with slight variations. Just why the birds indulge in these curious antics it is difficult to conjecture, unless it is by way... | |
 | 1912 - Страниц: 828
...of the procedure is usually closed by one or both birds pointing their beaks straight up In the air, rising on their toes, puffing out their breasts, and...thing is repeated many times with slight variations. Just why the birds indulge in these curious antics it is difficult to conjecture, unless it is by way... | |
 | 1911 - Страниц: 626
...of the procedure is usually closed by one or both birds pointing their beaks straight up in the air, rising on their toes, puffing out their breasts, and...thing is repeated many times with slight variations. There were comparatively few young albatrosses. When the parent birds were feeding at sea, the rookery... | |
 | 1911 - Страниц: 392
...of the procedure is usually closed by one or both birds pointing their beaks straight up in the air, rising on their toes, puffing out their breasts, and...thing is repeated many times with slight variations. There were comparatively few young albatrosses. When the parent birds were feeding at sea, the rookery... | |
 | 1912 - Страниц: 852
...of the procedure Is usually closed by one or both birds iwinting their beaks straight up In the air, rising on their toes, puffing out their breasts, and...thing Is repeated many times with slight variations. Just why the birds indulge in these curious antics it is difficult to conjecture, unless it is by way... | |
 | American Museum of Natural History - 1913 - Страниц: 434
...stepping high like a negro cake-walker. This part of the procedure is usually closed by one or both birds pointing their beaks straight up in the air...thing is repeated many times with slight variations. The albatrosses are said to begin nesting about the middle of November. The one egg is laid on the... | |
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