Around here, when a squirrel lounges on her belly, we call that “flatsquirreling it.”
Today was a nice warm day and squirrels were flatsquirreling all over the backyard.
Check out the dangling leg in this picture.
In this case Gracie did something interesting, she dug up the dirt like a dog and then laid in it to cool off.
Cute overload also has an example here: Actually I’m Holding This Down.