Feist would be my pick for squirrels, buddy of mine had a lab that would get doves when you shot them, he would also go around and get them out of other peoples piles if you were'nt careful

I would go with a Brittany spaniel myself no problems with the birds,the squirrel I think he could learn with a little help.
Good luck with your search.

For the birds I'd go with a spanieal or lab and beagles are good for squirel.

I am shocked no one has said a GSP. German Shorthaired Pointers are awsome versitile dogs. They point, retrieve, back and range. They just want to please. I think that they are the best all around dog that has ever been created. They retrieve like a lab, point like the britney, and run like a hound. Britney's are good but must be force broke to retrieve.

What is a squaral? Are they like naugas? Are they as hard to hit and cook as MOAs? My old friend Paul B. had a dog one time that he fed under a buffet so his front would stay low, and his back would grow, and when he was grown, he was always running down hill! Sounds like a perfect combination dog to me.