Thank you all for your responses! I should have mentioned that this is in southeast Wisconsin. I apologize for the quality of the pictures. I would go take better ones, but the house we're moving to with this tree is an hour and a half away, so I can't exactly just buzz out there.
I've attached two additional pictures. The first one is a zoomed in shot of one of previous pictures I sent. The second one is a picture I found online of a serviceberry. Is it possibly a serviceberry?
