I have only been hunting for one year but I know much about squirrels. My pap' s land is some of the best squirrel hunting there is. If you are hunting by yourself, make sure you have 3 quarters with you. You know how squirrels like to run to the other side of the tree when they spot you? Well, sit in that spot for 5 minute or so, then take two quarters and slide the other in between them, then pull it out while pressing hard on the other two. It will make a sound like a nut ing and the squirrel will come around the tree to investigate.
If you have someone with you...take a metal pipe of a big stick or something of that sort...if they run up into a nest, wait a minute...then have the other guy bang on the tree with the pipe. The squirrel will scramble out of that nest like his tail' s on fire. These two methods are proven to work.
plinker
Anger, Misery, You Will Suffer Unto Me