warbler

Mountaintop coal mining in Appalachia clears patches of forest contributing to the decline of birds like the cerulean warbler that breeds and forests in treetops.

在阿巴拉契亚的山顶的煤矿开采导致森林许多小片土地的减少，从而像蓝鹂莺这样的鸟类繁殖减少。

The birds in this study were Central European blackcaps, a common kind of warbler.

进入生物学家们视野的这种鸟名叫黑头莺，欧洲常见的一种鸣鸟。