Duffy-Anderson said large fish are often highly migratory.

达菲-安德森说，大型鱼类通常是高度洄游的。

Desert locusts are the world's oldest and most destructive migratory pest.

沙漠蝗虫是世界上最古老和最具破坏性的迁徙害虫。

The Coa Valley provides a migratory corridor for rare species.

科阿山谷为稀有物种提供了迁徙通道。

The Coa Valley provides a migratory corridor for rare species.

科阿山谷为稀有物种提供了迁徙通道。

A more exact count could help salvage a migratory wonder.

更准确的统计可能有助于挽救一个迁徙奇迹。

Every spring, migratory birds flood back to where they breed.

每年春天，候鸟都会涌回它们繁殖的地方。

Some 200,000 migratory birds fly to Duchang during winter, with the peak migratory season falling in November.

大约 20 万只候鸟在冬季飞往都昌，11 月是候鸟迁徙的高峰期。

So researchers analyzed six years of barnacle goose migratory tracking data.

因此，研究人员对白颊黑雁六年来的迁徙追踪数据进行了分析。

Cryptochrome has been found in the eyes of several migratory birds.

人们在一些候鸟的眼睛里发现了隐色体。

The Nordic countries provide a home to millions of migratory birds.

北欧地区是数百万候鸟的容身之地。