ptarmigan

It was a fearful cry, but the fox, leaping away in fright, did not drop the ptarmigan.

这是一种可怕的喊声，那只狐狸吓跑了，可是没有丢下松鸡。

Those interviewed spoke of a change in the range of species of mammals (moose and beaver) as well as a decrease in the number of some bird species (ptarmigan).

这次采访中也提到，哺乳动物（麋鹿和海狸）的种群范围正在减小，同样某些鸟类的种群（如松鸡）的数量也在减少。

Those interviewed spoke of a change in the range of species of mammals (moose and beaver) as well as a decrease in the number of some bird species (ptarmigan).

受访者提到哺乳动物（驯鹿和海狸）种群范围的变化，也提到某些鸟类（松鸡）数量下降。