That is a picture of a dead rat, covered in flies.
Misty the mighty hunter brought that rat inside last night, meowing her usual call of triumph and waking us up.
Of course, at that time the rat wasn’t dead and so she and I had to chase it around the house for a while until I could get it into a Tupperware container. It was already grievously wounded.
In the middle of the night, groggy and buck naked, I didn’t have the presence of mind to put it in the freezer or figure out some other way to kill a rat without getting bitten. So I tossed it out onto the driveway, where it promptly expired. Not my most humane or most competent moment.
It has now been run over a couple of times, and the flies etc. will do their work pretty quickly.