Critters on a wall, part 2

Just along the street from my previous post I saw this mural-like address sign on the home at 2002 E. Lee:

But take a closer look at the lower right corner. It's...

...a critter, not a part of the art (at least, not permanently).

I looked down at my camera for a moment — to go to the macro setting, to get another photo — and our friend was gone.