I have two adorable one-week old Rouen ducks, and I would really really not like it if they drowned. I've also heard that they can get chills from too much water in their enclosure, so I've been replacing the paper towels they've been chilling on because they have a tendency to soak it with their water dish's water.
So, I cut an empty milk carton with 1.5/1.5 inch holes, filled it about 1/2 inch with water, and put a few food pellets in there to let them get the idea that they're supposed to stick their heads in there.
My teacher is concerned that they could crawl through the holes and end up stuck inside the carton. This seems unlikely to me, like they would have to be really trying to drown themselves for it to happen. Is this a concern that should be actively addressed? If they get in, could they not just come right back out?