Kelley I was going to suggest the e-collar. I sure wish I had started Bugsy on it from early on. It took us ages to get him 100% on the invisible fence but we got there. That has been a godsend to us as it allows him to be as nutty as he wants in the yard without us being in a panic as to whether he will bolt after some prey or not.
If I were doing it all over again I would have used an ecollar to train him to our boundaries and used it away from home too. As you may recall the reason I finally took the plunge with the ecollar is because in the face of some wildlife Bugsy is NEVER going to recall (without the collar and some are a work in progress *cough cough* Geese!)
As for the whining, ugh Bugsy is a terrible whiner when excited, horrible, unstoppable, but hey he doesn't bark
I would start ecollar training asap so that he's good with it in the yard and in the field - 'here' means 'here' wherever you are!
he shouldn't bolt if you do the training correctly.
Two last things - We taught Bugsy when he was a pup to essentially 'point' squirrels, then we tell him good job, we see it and can move forward. he is allowed to chase them (and has caught them ) in our yard but when out on walks he points them and we acknowledge it and release him to walk again. Eventually this transferred to deer although that is still a bit tenuous at times. I always have this moment of 'Dear Lord let him not bolt' when we see deer, crows, bunnies, etc on our walks.
He has never tried to get them from in the house BUT we had a hawk hanging around all winter and he regularly flung his 105lbs into the french doors in an attempt to go after it.
contact me if you want to talk further!