zhè / zhǒng / niǎo / lèi / de / píng / xiōng / tè / zhēng / ràng / tā / men / fēi / xíng / shí / gèng / jiā / líng / huó

这种鸟类的平胸特征让它们飞行时更加灵活。

The flat-chested feature of this bird species makes them more agile during flight.