Thanks your right I should have pointed that out about the ducks. I put a coffee can filled with water in there for them to be able to do just that. As far as long term for them they will have this.
So far these have been hands down the best thing I’ve done for them/me. They consistently have clean water, they reach up to drink and I believe helps them. And the ducks can’t splash it every where! I just keep adjusting the height as they grow! I will definitely be setting up a gravity fed...