Don't they love it. it's so cute to watch them play with it.@Miss Lydia Thank You! for the tip about using the treat ball. When I first bought meal worms the ducklings refused to eat them, if I offered it to them. When I put them in the treat ball and just left it somewhere in the brooder, surprise, it would never be in the same place and somehow it was emptied with no traces of meal worm remains visible.
Tonight I slowly rolled it into the brooder and one duckling shot it back towards me with the other ducklings scrambling over each other to get at the spilled mealworms. What a difference!