These migratory birds spread the virus to the region.

这些候鸟将病毒传播到了该地区。

Experts have been studying the migratory path of this shark.

专家们一直在研究这种鲨鱼的迁徙路径。

The developed city has a huge migratory population.

该发达城市具备庞大的流动人口。

Migratory birds fly to the south before winter.

冬天之前 候鸟会飞向南方

Any of migratory songbirds of the family Turdidae usually have brownish upper plumage.

任何一种鸫科迁徒鸟类的上部羽毛通常为褐色。

Can migratory birds carry H5N1 over long distances?

候鸟会长距离携带H5N1型禽流感病毒吗？

Migratory tuna are also unlikely candidates for farming.

有回游习性的金枪鱼也同样不适合在鱼场养殖。

Do migratory birds spread highly pathogenic avian influenza viruses?

候鸟是否传播高致病性禽流感病毒？

For photo of Northern Harriers, Bear River Migratory Bird Refuge, ut.

这张白尾鹞照片摄于犹他州贝尔河候鸟保护地。