Bela found a crow's head and I've had it staked out on an ant mound in the yard for a couple of weeks. Those ants work slow, let me tell ya. They've cleaned a bit of the crud out, mostly the brains, but a lot of skanky ass shit is still hanging on.
So, I got out my science pan (the pan I use for noncooking related potential bio hazards) and boiled that puppy right up. It's cooling now so that I can finish cleaning it up.
Do you know how difficult it is to find a bird skull in the wild? They don't last long when left to the elements. A paper thin skeletal structure can be like that.
For the curious: I'm not morbid, I just love comparative anatomy. Paleontology would be nowhere without it!