Okay, not "forever" but for a really long time! I got a stock tank for a duck pool and put them in it the first day I filled it up. They loved it, splashed and swam around in it with abandon, but got out after about 45 minutes. Didn't have a ramp for them yet; scared me to death when they jumped out to the ground. and Put a ramp up, but also started free ranging in the back yard the same day. The back yard had a bigger draw than the pool. And, I think, the ducks hadn't tried the ramp, it looked daunting, and they kept on free ranging. Yesterday evening, after two full days of keeping the chickens and the ducks in the run, I saw the ducks looking wistfully at the pool. So I picked them up and put them into it. Wahoo! Happy, happy ducks! Louie got out after about 45 minutes. Thelma stayed in the pool. As dusk approached, all the chickens went to coop to roost. The ducks USUALLY joined them. Not this time. Louie hung around the pool. Thelma continued to float lazily in it. I finally went out as it got dark enough for solar lights to come on, and managed to capture Thelma and put her on the ramp. She jumped off the ramp, and she and Louie waddled off to the coop, but the automatic door had closed long before. So I herded 'em into the downstairs pen of the A-Frame coop, where they used to sleep before they decided they liked going into the coop with the chickens. So, my question is this: is it NORMAL for a duck to want to spend so much time floating in a pool??? Even into the darkness? I know they don't like to go into dark places... It just really worried me.