Every night my husband locks our chickens and ducks in their house. Each night Max goes with him to help. Max is always eager to go "herd the ducks". When he hears the question "Max, you ready to go herd the ducks?" he begins prancing around, wagging his tail and goes to the front door.
If the ducks are still in the main yard and haven't returned to their yard, Max will circle around them and push under their backside to urge them on. The ducks have become so familiar with this ritual that as soon as they see him they start running. Or should I say waddling as fast as they can.
Once Max has them in their house, he says goodnight to the chickens too. Of course nuzzling their fluffy backsides.
No chicken or duck was hurt during the nightly ritual of "backside nuzzling".