normarly the case with mine bolttle one up at 3ft wont stay long , bottle one up 8-9-12 ft bloody stay allday , but i have got one jill that will stay for a long time to a bottled up rabbit have had to leave her and go back the next day a couple of times where i just couldnt get to her, plus i think how many ferrets , rabbits in the warren at one time can play a big part to how long some will stay for