My 2 month old chickens always rush to the spot where I keep their water dish, and I finally discovered why. Yesterday when I was cleaning the water dish, I found little worms on the bottom of the dish. They look like little maggots without the dark heads or tails ( I don't know which is which). I've never seen them in their poop, or in the wood chip litter when I clean their brooder. ( They should be outside by now, and will be soon). To tell the truth I never looked very hard at the poop unless is is fresh and I wipe it up with a paper towel. Do they have worms, then eat the ones they poop out? Could they be fly larvae, since the garage doors were open most warm days? What should I do?