I've googled and can't find the answer, so I hope someone can help me! We butchered two drakes yesterday, they were about 16 weeks old. Both seemed perfectly healthy, but one had a yellow bump on its liver. It looked perfectly fine otherwise. I thought "huh, that's interesting, I'll have to look that up." and then promptly forgot about it as I finished cleaning the bird and got it in the fridge and everything. Tonight I roasted the ducks, and it wasn't until I was getting ready to put the organs in the stock pot that I remembered about the spot, so I came to the computer to google it and now I'm freaking out that it might be some kind of bacterial infection or something and I've just made my entire family sick! Guess I shouldn't make that stock now. . . but I still don't have any specific answers. What exactly could it be? Is there any way that it is harmless? If not, is there something I should do to prevent us from getting sick? Do I need to worry about the rest of the flock??? Help!!!!!! Ugh, I can't believe I didn't look it up sooner. . .