Those are both pretty cool. I've never found a wasp/hornet's nest myself. Granted, I don't search the reverses of many coins outside the varieties that I am looking for.
It is Meow's fifth one found. Meow studies every coin front and back closely. It gives Meow something to do.
I would do that but my mantra is quantity. Otherwise I wouldn't have been able to plow through 8 boxes a week at the height of my CRHing.