My Roxy is 4 1/2 years old fox. I rescued her at about 5 or 6 weeks old and rehabbed her, released her 7 months later. She's lived in my back yard ever since and believe she is now nursing litter #7. She has been a very healthy squirrel ever since. As I just saw her having some dinner (peeled apple, peeled blueberry, sunflower seeds and some walnut), she left behind feces that were not the usual small black balls. It was light brown, not diarrhea and more elongated versus round and clumped together. I'm a bit concerned. Can you diagnose the problem ? Can you suggest something I can supplement in her diet, so she'll leave behind normal feces ?