My DH and I love the dewlap toulouse and were thinking of getting a couple pairs for our farm flock. BUT we heard from our local self-appointed chicken expert that these birds need water in order to breed. Is this true? And if it is would an extra large livestock tank that we made a koi pond out of work? It is about 3 feet deep and 3/4 burried into the ground. Any insight on these geese, behavior, how they pair off, breeding would be really appreciated! THANKS!