1·They are important and necessary feeding and breeding grounds for migratory birds.
他们是候鸟必不可少的觅食和繁殖地，十分重要。
2·Some residents voiced concern that the rice could threaten certain species of rare migratory birds.
一些居民担心这种大米会威胁到某些稀有候鸟的生存。
3·Early in his research, Kramer found that caged migratory birds became very restless at about the time they would normally have begun migration in the wild.
在克雷默早期的研究中，他发现被关在笼中的候鸟在它们通常开始在迁徙的大致时间会变得非常不安。
4·Make a report on how migratory birds live.
写一份候鸟如何生活的报告。
5·Can migratory birds carry H5N1 over long distances?
候鸟会长距离携带H5N1型禽流感病毒吗？
6·Do migratory birds spread highly pathogenic avian influenza viruses?
候鸟是否传播高致病性禽流感病毒？
7·The Salyan Rayon is located near wetlands frequented by migratory birds.
萨利亚内区地处经常出现候鸟的湿地附近。
8·Deaths in migratory birds, infected with the virus, have also been reported.
还报告了受该病毒感染的候鸟的死亡。
9·Besides migratory birds, what other animals have the habit of migrating?
除了候鸟，还有哪种动物有移居的习性？
10·As the season changes, migratory birds begin to arrive at the coastal wetland.
随着季节的变化，候鸟开始陆续到达沿海的湿地。