Health-wise, everything with Parker has been fine up until now. I was a little worried about the possibility that she could also get sick with whatever Quinn had (we never did find out the root cause - antibiotics did not help).
This morning I cleaned her cage, gave her fresh seed and pellets, and a bit of apple. I went back in the room to remove the apple pieces from her cage, and noticed that her droppings are green, and have whole undigested seeds in them. Could the apple be the cause of such a problem?