Another example is the bird Rock ptarmigan which has brown feathers during the summer and white during the winter.

另一个例子是岩雷鸟，在夏季时是棕色羽毛， 而在冬季呈现白色。

He could take a ptarmigan from its nest, kill a rabbit as it slept, and snap in mid air the little chipmunks fleeing a second too late for the trees.

他可以石鸡从窝里捉出来, 睡觉兔杀死, 连小松鼠跑慢一在逃上大树之前被他半空中咬住。

Its cause was not helped by examples such the " p" which was added to the start of ptarmigan with no etymological justification whatsoever other than the fact that the Greek word for feather, ptera, started with a " p" .

之类例子帮助， 它被添加到 ptarmigan 开头， 没有任何词源学理由， 除了希腊语中羽毛一词 ptera 以“p” 开头。