Arctic Tern

美 [ˈɑːrktɪk tɜːrn]英 [ˈɑːktɪk tɜːn]

Arctic Tern

noun

北极燕鸥
a bird with a red beak that breeds in the Arctic and spends the winter in the Antarctic

1

For sheer distance , the arctic tern probably holds the record ;

仅就距离而言，恐怕当首推北极燕鸥了；
2

The understanding is that the Arctic Tern is a migratory bird which is mainly found at the North Pole and surrounding regions .

据了解，北极燕鸥是候鸟，主要分布于北极及北极附近地区。
3

Arctic ( tern ) was not seen again and was presumed extinct .

从此，北极燕鸥再也没有出现，估计已经灭绝了。