Today we found a gray squirrel struggling in the grass under one of our trees. It was heartbreaking. It couldn't move its hindquarters and we surmised that it fell out of the tree.
I don't like to see any animal suffer, so we found a place that takes in injured wildlife. They will be able to assess it and determine if its back legs are just stunned or if the poor little thing broke its spine when it fell. Either way, it will be comfortable now.