Anyone know what kind of tree this is?

[malkin]

Google image search for Hawthorn Berry gives a whole lot of pictures that look like yours.

[Irulan]

That's what I love about these, they can have a beautiful shape. With the berries they can be very striking in a winter landscape.

[bmccasland]

Have you checked with your local Ag Extension Agent? Most counties have an office, or at least there's a state office.

[WindingRoad]

Bmccasland - I have emailed Penn State division of horticulture but that's it so far.

I feel a little unnerved by the birds leaving them alone too.

[channlluv]

If you have a local Master Gardener's Association, they can tell you what it is, and if it's edible, they can probably tell you how to prepare it, can it, and whatever else you'd like to try with it.

Roxy

[Mr. Bloom]

I once had something like that that popped out of a planting bed. After five years, fruit showed up. It was that size and color with pits. It was a wild persimmon. Good luck in the search

[Biciclista]

hawthornes lose their leaves and just the berries are left which fall slowly all winter.

[PamNY]

I feel a little unnerved by the birds leaving them alone too.

That would unnerve me too. I think birds (cedar waxwings for sure) love hawthornes.