The children belong to a club for young ornithologists .

孩子们是年轻的鸟类学爱好者俱乐部的成员。

Early ornithologists , puzzled by the disappearance each winter of the local swallow population , suspected that the birds buried themselves in mud and hibernated .

早期的鸟类学家，无法解释每到冬季时当地的燕子消失尽殆的现象，便怀疑它们把自己埋在烂泥中长梦过冬。

And because weissensee is such a deep forest , ornithologists doing serious birds of prey research show up to climb its trees and count the number of goshawk fledglings in cemetery nests .

而且因为魏森塞是一片很深的森林，对猛禽做严肃研究的鸟类学家也会出现在此地，爬树并计算鸟巢中苍鹰雏鸟的数目。

Many ornithologists specialize in very rare or endangered bird species rather than focusing on more common birds .

相对于关注常见鸟类，很多鸟类学家更是稀有和濒危鸟种的专家。

The work of many dedicated ornithologists presented in modern tv documentaries continues to bring their beauty to our eyes .

在现代电视纪录片提出了许多专门的鸟类学家的工作继续把自己的美丽我们的眼睛。