Derek -
My camp isn't far from you and I've hunted all over Lycoming Co. for over 50 years. I've never seen deer eating white pines there. I've only ever seen a handful of rubs on them either. Red or sugar maples, witch hazel, striped maple, hemlock, sumac, pitch pine, and laurel seem to be the big rubbing targets there. We have thousands of white pines at camp and I've never seen a rub - or browsing - on any of them. A suggestion ............ if you plant white pines and want them as a screen, keep them topped when they're about 4 or 5 ft. tall so they thicken up and don't turn into skyrockets for you. Without topping them, they'll just grow upward and the lower limbs won't provide much of a screen. They'll still grow taller, but with many more limbs to give you a screen.
Washington hawthorn needs a lot of sun to get good crops of those red berries that draw grouse, turkeys, and lots of birds. If you're planting rows of things, keep the hawthorns in sun by maybe planting them on the outside of your other stuff. Deer and other critters will get through hawthorns OK, but as they mature and get taller, people won't want to venture into them. The thorns get to about 2 1/2" long and look like big needles !! Our deer go through them with no problem. They'll also drop those red berries, which will give you lots of free seedlings to transplant later - or leave then to thicken your row. I used to hunt a property outside of Cogan Station in the farm country. There was a small ravine there that was choked with hawthorn ............. and we always kicked deer and grouse out of that ravine. Those thorns probably kept human intruders out of that ravine - safe, secure place to bed and hang out for the critters. I've had nothing but good results & experiences with Washington hawthorns. FWIW.