About 3 weeks ago we replaced our kiddie pool with a 2x4 2ft deep water troth. We went and built up the sides, and added steps into and out of the water. Well, I think they believe they are chickens. They will walk up the stairs, but will only drink out of it. They will also perch on the sides, but will not get in it. The water had been crystal clear for the past 3 weeks so I know they are not getting in it. We put them in it a couple times, and they splash around for about a minute, and then jump/fly out. How can we get them to get in there? It has been muddy for the past week and these guys are getting dirty.