The noddies too have a problem.

黑燕鸥也遇上了麻烦。

Once a year, the noddies arrive.

每年白燕鸥都会来一次。

Noddies are devoted partners and often remain together season after season.

白顶玄燕鸥是非常恩爱的伴侣，通常会结伴很久。

By the time the young noddies leave, they carry these hitchhiking seeds away to other islands.

新一代黑燕鸥离巢的时候，会带着这些搭顺风车的种子前往其它岛屿。

Noddies signal to each other continually during courtship,both in the air and after landing.

求偶期的白顶玄燕鸥会不停地表演，无论是在空中还是地上。