I am the bumpkin who took a mortar shell to the head in the battle for Brooklyn. I was told that about 5 ounces of grey epoxy type matter drooled out of my skull and pigeons were skating around in it. They siphoned up the grey epoxy type goo from the asphalt, cleaned out the pigeon parts and poured it back in there. You can see in my photo exactly where my head was opened up. Although I suvived, they could not guarantee that all the feathers and such were removed during the siphoning.
The more and more notation you use, the more and more you get confused.
Remember also the human overhead of writing this if it is not going to be used many times.