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Birds of spring 2005 (4)

(2005-08-06 18:29:32) 下一個
這是一隻Black-and-white Warbler。看見它在高高的樹枝間翻飛跳躍,我隻有靜靜等在樹下,瞅準時機,拍下幾張。早見到它在樹上吞食一些綠的東西,本以為是綠葉子,想想可能是個吃素的,回家一看,原來它吃的是綠蟲子,在它們看來絕對是美味佳肴了。原來大多數Warbler都是吃昆蟲為生的,看它們這麽容易就找到蟲子,應該是益鳥了。 這裏是一些web上的介紹: Distinctive in both plumage and behavior, the Black-and-white Warbler forages for insects while creeping along the trunks and branches of trees. Common in summer throughout the eastern United States and Canada, it has an unusually extensive winter range that extends from Florida to Venezuela and Colombia This conspicuous warbler arrives in the North early in spring, usually by mid- to late April. It is known for its habit of creeping around tree trunks and along larger branches in search of insect food in crevices in or under the bark; hence its old name, "Black-and-white Creeper." Unlike the Brown Creeper, which only moves up a tree, this species can climb in any direction. description 5" (13 cm). Black and white stripes, including crown. Male has black throat; female's throat white. Creeps on tree trunks.
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