The shape made them perfect nesting sites for these birds.

这种形状使它们成为这些鸟儿下蛋的最佳场所。

The Red-winged Blackbird arrived and scouted the pond for nesting sites.

红翼歌鸫来了，在池塘中寻找着可以筑巢的地方。

And they have the perfect nesting site right next to it.

右侧便是它们选择巢穴的最佳地点。

These leviathans are making a journey to nesting sites they've used for generations.

这些庞然大物正在前往它们世代繁衍的筑巢之地。

As for how they wind up kilometers away from the previous year's nest site?

那蜂王是如何离开前一年的巢穴到数英里之外去的？

High-rise apartment blocks, where every ledge, no matter how small, is a potential nest site.

高耸的居住区每一处岩脊，无论有多小都可以是安身之所。

When they return home, their droppings end up all around their nesting sites, including in nearby ponds.

当他们回家时，他们的粪便会围绕着他们的筑巢地点，包括附近的池塘。

With so many pairs looking for the ideal nest site in the scree, squabbles break out.

这么多对侏海雀在碎石坡上寻找理想的筑巢点，争吵在所难免。

For instance, we escort mama ducks and their ducklings from their urban nesting sites to water.

例如，我们护送母鸭和它们的小鸭子从城市筑巢地到水中。

We see the intricate community dynamics of turquoise  bee-eaters jostling over nesting sites embedded in a cliff.

我们看到绿松石色的食蜂鸟在嵌入悬崖的筑巢点上争先恐后，错综复杂的群落动态。

A formidable wall of bureaucracy has been erected to protect their prime nesting sites on the Atlantic coastlines.

为了保护它们在大西洋海岸线上的主要筑巢地，已经竖起了一道令人生畏的官僚墙。

Lodges can serve as nesting sites and refuges for various species of waterfowl.

小屋可以作为各种水禽的筑巢地和避难所。

One possible tool in the fight against poaching has its roots thousands of miles from the turtle's nesting sites, a farm in Michigan.

在数千英里外的密歇根州，有一个农场，海龟会在那里筑巢，于是那里也诞生了一个打击偷猎的可行方案。

They form a wall that females must plow through to reach suitable nesting sites.

它们形成一堵墙，雌性必须翻过墙才能到达合适的筑巢地点。

Their nesting sites are affected too by the same sorts of human activities.

它们的筑巢地也受到同类人类活动的影响。

If she's impressed they'll become a pair and  will fly around looking for a nesting site.

如果她印象深刻，他们就会成为一对，并会四处飞来飞去寻找筑巢地点。

Dinosaurs were coming to this location even when it was highly active volcanically, using it as a nesting site for literally centuries.

恐龙选择在这里筑巢，即使是在火山高度活跃的时候，这个地方也作为筑巢地被使用了数个世纪。

And there are definite advantages to joining a group, like more food, increased nest defense against predators or parasites, and the potential to inherit established nest sites.

加入一个群体有一定的优势，比如更多的食物， 增强巢穴对捕食者或寄生虫的防御能力，以及继承已建立巢穴的潜力。

It may be that tropical birds, which face more intense competition for food and nesting sites than temperate ones do because the tropics have more species, form more stable and collaborative pair-bonds than do temperate birds.

这可能是热带鸟类形成了更稳定更协作的一夫一妻制，因为热带有更多物种，热带鸟类比温带鸟类存在更激烈的食物竞争和巢穴竞争。

" We knew that queens end up kilometers from the previous year's natal nest site but we didn't know anything about how they get there." Clint Perry, a cognitive biologist at Queen Mary University of London.

“我们知道蜂王最终离前一年的巢穴有数公里，但我们对它们如何到达那里一无所知。”伦敦玛丽女王大学的认知生物学家克林特·佩里 (Clint Perry) 说。