If I have a bird die from a sickness, then I just toss it into a compost bin and cover it up well. I have not had any problems with varmints. I know lots of people say you cannot compost meat, but I don't agree. But I put a dead animal in the compost bin, bury it deep, and leave it alone for about a year. No problems that way. I figure the meat feeds the worms if nothing else. Anyways, after a year or so, there is nothing left but maybe some larger bones easily sifted out of the compost if you don't want them.