bird population

• 鸟类

bird population的用法和样例：

例句

1. The great auk is an extinct bird.
   大海雀是种灭绝的鸟类。
2. Parrots have more endangered species than any other bird family.
   与其它鸟类相比，濒临灭绝的鹦鹉的种类更多。