Jiminy Crickets. About those marbles in the brooder waterer. I was thinking little beaks, not bills.Duh! You need to make sure you use something the ducklings can't swallow. Regular marbles might not be a good idea for them. Ok for the chicks & quail, but now I don't suggest them for your baby ducks. You could go to your local dollar store and get ping pong balls, or if you are a golfer put in golf balls-just something big enough they can't accidentally drown in the waterer and large enough the ducklings won't swallow and choke.I'm in need if some assistance please. I have a swim pool for my ducks now but still have a small tub of fresh clean water for them to drink from but oooh nooo will they drink from it. nup they just dirty it in literally seconds. When I empty it out there is either mud or poo at the bottom. (why one earth are they pooing in it?). How can I battle this? Also when I clean it out then refill it there is almost like an oily film left on top of the water, it not from my water as the hens water is fine it only happens with the ducks. Is this O.K? Hope Anyone Can Help Me, Thanks.