squirrel on tree

[Vincent.M]

This took me 15 shots he wouldn't stop running around

 

[Rafterman]

This took me 15 shots he wouldn't stop running around

Use a faster shutter speed. For squirrels, I'd say no less than 1/500 if they're highly active. If they're eating, you can use something slower, but when they're twitchy (which is most of the time), you need a FAST shutter speed.

Here's some shots I took with slower speeds, but the critter was largely stationary at the time: http://www.thephotoforum.com/forum/nature-wildlife/320114-squirrel.html

 

[Tiller]

Looks way too oversaturated to me.