1. The swallow is a bird of passage, migrating thousands of miles each year.
燕子是候鳥，每年遷徙數千英里。

2. As a bird of passage, the Arctic tern travels from the Arctic to Antarctica and back again.
北極燕鷗是候鳥，從北極到南極再返回。

3. The cuckoo is a classic example of a bird of passage, traveling between Europe and Africa.
杜鵑是典型的候鳥，往返於歐洲和非洲之間。

4. Many species of birds of passage stop in our area during their migration.
許多候鳥在遷徙途中會在我們地區停留。

5. The swift is known as a bird of passage for its swift and long migrations.
雨燕以其迅速而長途的遷徙而聞名。

6. The sandpiper is a small bird of passage that can be seen along coastal areas during certain times of the year.
沙鷸是一種小型候鳥，某些時候可以在沿海地區看到。