KohR[1]13:2(4) :מתלא אמ׳ טבא צפרא חדא כפיתא מן מאה פרחין‏ : the proverb says a tied up bird is better than 100 flying [i.e. a bird in the hand is worth two in the bush]
See the entire entry for kpt vb. to bind, tie up