'Catch' in the Bible

Does a bird fall into a snare on the ground without any bait in the trap? Will a trap snap shut when there is nothing to catch?

"Be sure of this, the time is coming," says the Lord, "when the plowman will catch up to the reaper and the one who stomps the grapes will overtake the planter. Juice will run down the slopes, it will flow down all the hillsides.