My ducks & chickens share a coop & run. They're fairly young still so space isn't the issue. I want to keep a small pool for the two ducks, but I've heard chickens will drown themselves. The gentleman I bought everyone from has all sorts of birds together, with several stock tanks used as ponds in his poultry yard so I'm not sure how credible that rumor is. How easily do chickens drown in duck pools? Right now it's just a large metal bowl but I'd HATE to come home to that. Any experience would be helpful!