I recently got two Buff Orpington ducklings. they are just three weeks. I believe one of them has thrown up twice, so I have some questions. My google searches have shown that ducks will sometimes do this if their crop is full and has been stroked, but I just want to know if when that happens, does it still look like whatever they've foraged? Or does it look like it has been digested? I think that it was just that, but I would still like to be sure. Like I said this is my first time raising ducks, and I still have lots to learn.