尾覆羽 的英文怎麼說
中文拼音 [wěifùyǔ]
尾覆羽
英文
tail coverts-
Dark - centred undertail coverts = dark - sided flycatcher ( white in grey - streaked )
暗色為中心的尾下覆羽=鮮卑? (烏? ) (灰斑?的是白色的)It is a very big generalization, and some species are exceptions, but generally first summer individuals can only be separated by retained juvenile remiges and rectrices or by moult limits in the greater coverts
這是一個很概括的看法,且某些鳥種是例外,但一般而言一齡夏羽個體只能以還留著的幼鳥飛羽和尾羽,或大覆羽的換羽界限來區分As you cannot see the rumps of any of these birds and the undertail coverts lack salmon tones i would be reluctant to call them lesser cuckoos
由於在圖片中無法看到這幾只鳥的腰部而且尾下覆羽不帶橘紅色味,個人對稱?們為小杜鵑有所保留。Your 1, 2, 3 seem likely to be 1. black - headed gull ( despite the misleading - looking leg colour, it has ear covert spot of one of the " hooded " gulls ) ; 2. black - tailed gull first winter ; 3. ?
你的1 , 2 , 3看起來像是1 .紅嘴鷗(盡管有誤導的腳部顏色,它有"帶頭巾的"鷗(譯注:如棕頭鷗,紅嘴鷗,黑嘴鷗等)其中一種的耳部覆羽斑點) ; 2 .黑尾鷗一齡冬羽; 3 . ?Even cloaked in ice, an oldsquaw duck finds hokkaido ' s winter climate bearable. the ducks ' densely packed feathers trap enough air to insulate them from frigid waters
即使身上被冰塊覆蓋,這只長尾鴨還是經得起北海道冬天的氣候;這是因為它緊密的羽毛能夠留住足夠空氣,讓它在冰寒的水中保持溫暖。分享友人