楔尾綠鳩

(bird species of China) wedge-tailed green pigeon (Treron sphenurus)

wedge / to hammer in (variant of 揳[xie1])

tail / remainder / remnant / extremity / sixth of the 28 constellations / classifier for fish

horse's tail / pointed posterior section of a locust etc

green / (slang) (derived from 綠帽子|绿帽子[lü4 mao4 zi5]) to cheat on (one's spouse or boyfriend or girlfriend)

turtledove / (literary) to gather