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標題: [自然百科] "呆頭伯勞鳥".別名:屠夫鳥 [打印本頁]

作者: klamb 時間: 2013-10-11 05:36 AM 標題: "呆頭伯勞鳥".別名:屠夫鳥

本帖最後由 klamb 於 2013-10-11 05:44 AM 編輯

伯勞鳥中的--
"呆頭伯勞鳥 The Loggerhead Shrike ".別名:屠夫鳥. "Butcher Bird,"
呆頭伯勞鳥（Lanius ludovicianus）是雀形目鳥類。它是唯一"伯勞"家族成員在北美的特有種.The Loggerhead Shrike (Lanius ludovicianus) is a passerine bird. It is the only member of the shrike family endemic to North America.

鳥都有大利鉤嘴，頭部和背部為灰色，下部白色。翅膀和尾巴是黑色的,翅膀和白色的外尾羽有白色斑塊,但比北方伯勞鳥稍大.The bird has a large hooked bill, the head and back are grey and the underparts white. The wings and tail are black, with white patches on the wings and white on the outer tail feather,but slightly larger than Northern Shrike.

伯勞鳥繁殖在半開放的領域，在安大略省南部，魁北克省和加拿大草原三省，南到墨西哥。它的巢在茂密的樹木和灌木,雌鳥產蛋4〜8個.The bird breeds in semi-open areas in southern Ontario, Quebec and the Canadian prairie provinces, south to Mexico. It nests in dense trees and shrubs. The female lays 4 to 8 eggs .

鳥喜歡在視線廣寬的棲息木林上等待,並俯衝下來捕捉它的獵物。食物多是大型昆蟲，小型鳥類和蜥蜴。The bird waits on a perch with open lines of sight and swoops down to capture prey. Its food is large insects, small birds and lizards.

"呆頭伯勞鳥" 被稱為“屠夫鳥”,因為它沒有較大的鳥禽的爪子.因此它喜歡把它的獵物刺在荆棘或鐵絲網之上才吃.同時也喜歡裝飾和排列受害者的羽毛來吸引異性.Known in many parts as the "Butcher Bird," it impales its prey on thorns or barbed wire before eating it, because it does not have the talons of the larger birds of prey. The bird decorates its impaled victim with feathers and bills in order to attract a mate.