He hangs these boxes up in trees and takes them down every week to see if the birds are nesting in them.

他把这些箱子挂在树上，然后每周取下来，看看鸟儿是否在里面筑巢。

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Not long ago, he found that the bluebirds were nesting in the dead trees which were often cut down, so he began to make bluebird boxes for the birds in order to save them.

不久前，他发现蓝知更鸟在枯树上筑巢，而这些枯树往往会被人们砍去，于是他开始为这些鸟制作蓝知更鸟箱，以拯救它们。

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Climbing up and down to our arboreal camera platform, and then into the nesting tree itself, incurred the mother's wrath.

我们爬上去再回到安置在树上的摄像机平台，然后撞到了树，惹怒了母鹰。

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The clattering racket of progress proves a surprisingly effective lullaby and, nesting down in my little compartment, I drift towards sleep.

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The nesting platform is about half way down the tower and the falcons regularly take local, wild birds for food.

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As dunes build up absent a storm to knock them down they shift closer to the high-tide line, and nesting space shrinks.

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