Well our ducks are almost 10 and 8 weeks old now. My kids and I go out to them everyday and give them there daily pees. Since the ducks are big now and go crazy over the pees, getting fingers, toes, and noses in there mouths We came up with another way to feed them. At first I give them some from my hands since they don't go as crazy when I feed them as when the kids do. Then the kids start tossing the pees at different places in front of them. The ducks run all over getting them. It really isn't like bowling but my daughter (4 yrs old) said "mom it's like bowling". So now they ask can we go out bowling for the ducks.