【 走 鋼 絲 】

Dusky, black-capped and black-bibbed chickadee with chestnut flanks and back.

Its chick-a-dee call is somewhat thriller and the beat faster than in other chickadees. Often simply utters a thin tsee-dee and thin lisping notes.








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In the coastal forest of the Northwest, where the Chestnut-backed and Black-capped chickadees overlap, the former prefers the top half of conifers, hile the latter feeds in the lower half of trees, very frequently oaks. Thus they do not compete for space even within the same area.





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所有跟帖： 

• 好鳥片。1，2最好。2的下麵多點就好了。 -nanjing2- ♀ (0 bytes) () 05/09/2012 postreply 19:48:53

• 可愛！焦點還沒有落實在眼睛上。挺不容易的。還是要頂！ -YuFoto- ♂ (0 bytes) () 05/09/2012 postreply 20:12:30

• #1，2 -多城居士- ♂ (0 bytes) () 05/10/2012 postreply 03:54:21

• 1最好 -子夜歌- ♀ (0 bytes) () 05/10/2012 postreply 07:29:52