鸟类的计数英语怎么说

鸟类的计数英语被称为"bird counting"。
这个说法来自于为了确定鸟类的数量和种类，而进行的观察和记录的过程。人们可以在某个地区或者某一段时间里观察鸟类的数量和种类，然后进行记录。
例句：
The bird counting survey found that the population of sparrows had decreased by 50% in the past year.
翻译：鸟类数量调查发现麻雀的数量在过去的一年里减少了50%。
The ornithologist led a bird counting expedition to the remote island.
翻译：鸟类学家带领一支鸟类计数探险队到偏远的岛屿。
The annual bird counting event is an opportunity for citizens to get involved in bird conservation efforts.
翻译：每年的鸟类计数活动是公民参与鸟类保护工作的机会。