鳶が鷹を生む;トンビが鷹を生む(sK);とんびが鷹を生む(sK);トンビがタカを生む(sK) [とんびがたかをうむ;とびがたかをうむ] /(exp,v5m) (id) to have a talented child despite being untalented/a black hen lays a white egg/a kite gives birth to a hawk/EntL1457250/