What else does his diet consist of?
If there are alot of fat containing seeds, (besides the sunflower) in his diet that can contribute to the watery poops, also stress or change in diet can cause them.
I would recommend a good probiotic as the gut bacteria is out of balance as that may help clear it up. Also, use a drop of apple cider vinegar and add to drinking water. (a tablespoon or two per gallon of water)
If there are alot of fat containing seeds, (besides the sunflower) in his diet that can contribute to the watery poops, also stress or change in diet can cause them.
I would recommend a good probiotic as the gut bacteria is out of balance as that may help clear it up. Also, use a drop of apple cider vinegar and add to drinking water. (a tablespoon or two per gallon of water)