I have 2 ducks I want to put a small kiddie pool for them to use but I have 12 chicken also. The ducks and chickens share the same run together. If I put a small kiddie pool could the chickens drown? It's a small walmart kiddie pool not even a foot of water could fit in it. If the pool is dangerous for my chickens should I separate the ducks and chickens from each other? How much room do 2 ducks need if I do separate the run?