Ok, I'm replying to a two year old post because when I was having this problem I couldn't find help anywhere. I don't know if my problem or the solution I found are atypical but this is what happened. I have two pekins 4 months old and four mallards 3 months old. The mallards think they belong to the Pekins (Gumbo and Stewie). I live on 14 acres but for the first few months I kept their fencing and pool in my front yard because I liked to look out my bedroom window at them and because I felt like they felt more comfortable being close to the house. My husband built their permanent enclosure which is a giant fenced area and their house. The fencing is big so they can walk through when they desire. Their house (which they stay in at night) is the secure part of the area. Anyway, when it was ready I moved their house and pool (which they always really enjoyed) back there. I also have a giant 300 gallon pool that I thought they would use soon enough. Well they boycotted their pool completely. For days and days I would find them in mud puddles and sitting in their bowl. It was like the pool didn't exist. By day six I was beside myself. The ducks were dirty, their eyes were cloudy and they didn't look happy at all. I tried everything I could think of (even putting minnows in the pool!) to no avail. Finally I put a small fence on one side of the pool and my husband and I herded the Pekins into the area. I picked up Gumbo and he picked up Stewie and we put them in the pool and stayed crouched over them. They weren't happy but they didn't fight it. Finally after about five LONG minutes Gumbo took a drink of water and Stewie followed suit. Soon they were washing their faces. My husband and I backed out of the area and the mallards joined them in the pool immediately. The following day it was the same routine, they were sipping the small mud puddles so I did the same thing but it took much less time for Gumbo to give in. This morning when I left for work, they were all happily frolicking in the pool, like nothing ever happened. So, I don't know if the extra fence makes them feel more secure, or if they were pouting or if they forgot how much they loved the pool or what. Everything I read said you should never force a duck into the pool but I really felt like their health was being compromised. If that didn't work, I was going to call a rescue becuase I felt like I was completely failing these guys. All's well that ends well I guess.