Like others have said, I used the same words since they were a week old to let them know it was time for bed. I said 'night night' lol - so original i know When they got older and didn't want to come in, I started tempting them with meal worms, always in the same bowl - so they started coming in if I just showed them that bowl. Now they come to their night house by themselves and go inside and wait for their meal worms (and I started adding peas). I sprinkle them in a water bowl so they can wash them down - then lights out! My new duck even caught on to this routine really quick - she always hungry!