It was suggested that the birds may have changed their migratory route.

有人认为这些鸟可能改变了它们的迁徙路线。

She arrived at our reserve from a reserve east of us on her migratory route.

她从美国东部的一个后备队到我们的后备队。

" The idea is to be able to cover the entire migratory route of the whales from Antarctica to the equator, " Espanol said.

“我们的想法是能够覆盖鲸鱼从南极洲到赤道的整个迁徙路线。”埃斯帕诺尔说。

Limiting human activity along migratory routes and in other critical habitats, and reducing noise pollution throughout the ocean would help ensure whales continued survival.

限制迁徙路线和其他重要栖息地的人类活动，并减少整个海洋的噪音污染，将有助于确保鲸鱼继续生存。

This strain of avian flu is said to pose a threat especially in countries along the Black Sea with limited resources and along East Atlantic migratory routes of wild birds.

据悉这种禽流感对资源有限的黑海沿岸国家及位于东大西洋野鸟迁徙路线上的地区尤其构成威胁。