People might poke holes in this but...I had a pheasant skin a few years back that I discovered some bug eggs all over. I cleaned out what I could see by hand. I then chucked it in the microwave (1.6 kw) for 20 sec. The bugs haven't come back. That was two years ago. I have been doing this to most bird skins I buy. The skin might tighten up but I have seen no ill effect on the feathers.