Is it 48 square feet of run plus separate coop space? How big is the coop? How big is the run (not counting the coop)? I have a feeling my answer is likely the same as @Chickiemom25 because once you add a pool, a water bucket, a feed dish, maybe a step or platform to get in the pool, maybe another bowl for treats or oyster shell or something, You find there's not a ton of space left. I'm going with maybe 3 ducks, and make sure they are all the same sex.