To find out, they captured 18 crows from overwintering spots in California and New York.

为了找到答案，他们在加利福尼亚州和纽约州的过冬地点捕获了18只乌鸦。

Unlike honeybees, native bees in the U.S. don't overwinter as a colony.

与蜜蜂不同的是，美国本土的蜜蜂不会作为一个群体越冬。

“So, if you're overwintering there, how do you deal with the cold? ”

“如果你在那里过冬，要如何对抗严寒呢？”

Jandt can recall one memorable zombie fire, which reignited after overwintering in May, 1996.

Jandt 能回忆起难忘的一场僵尸火灾——1996年5月，野火过冬后再度燃烧起来。

And overwinter each year in the vast wetlands here.

到这里的湿地越冬。

So in the 1980s, the overwintering butterflies here in California, there were four million counted.

上世纪 80 年代，在加利福尼亚过冬的蝴蝶有四百万只。

Though they're adept fliers, these birds typically overwinter in South America.

尽管它们擅长飞行，但这些鸟通常会在南美洲越冬。

The number of storks overwintering in Portugal has shot up from fewer than 2,000 in 1995 to 14,000 in 2014.

在葡萄牙过冬的鹳数量骤增，从1995年的不到2000只，蹿升至2014年的1.4万只。

Every year, some members of the population migrate between breeding grounds and their overwintering grounds-like parking lots.

每年，乌鸦群中会有一些成员往返于繁殖地和停车场等过冬地之间。

Instead of northern surveys counting breeding adults, IUCN and others use data from the forests where monarchs overwinter in central Mexico.

IUCN和其他机构使用的是来自黑脉金斑蝶在墨西哥中部越冬的森林里的数据，而不是计算北方成年黑脉金斑蝶繁殖情况的调查。