My husband made an awesome chicken coop for our birds but then we added 3 ducks to our flock. The coop is about 3 feet of the ground which is great for cleaning and such but I have to climb in and help the ducks out every morning. The chickens fly in and out but the ducks don't even try to use the ramp because it's just too steep of an incline. How can I make a ramp that they can use? I don't want to have to keep climbing into the coop every day. I also don't want to make the ducks a separate coop.