The duck that I took last week isn't eating very well. She did lay an egg yesterday, so thats a good sign, but she doesn't seem to be eating much at all. She am drinking lots of water. I started out giving her pellets. Next, I tried mixing some crumbles in. Lastly, I gave her some bits of fruit and veggie scraps. She has nibbled at all of it, but just hasn't ate much. What do you feed? Should I try something else?