Unable to fly ,in vain the bird flaps his wings. 鳥兒不會飛，拍翅也枉然
A bird is known by its note and a man by his talk. 識鳥聽啼聲，識人聽語音
* Better be a free bird than a captive king. 寧為自由鳥，不作被困王
* Better be a bird in the wood than one in the cage. 寧為林中鳥，不作籠中鳥
* A bird in the hand is worth two in the bush. 雙鳥在林不如壹鳥在手
*Birds of a feather flock together. 鳥以群分，物以類聚