Just some other views.

Can't be sure. Maybe something in the rose family (Prunus). Serviceberries?

I was thinking they could some type of buckthorn.

Buckthorn; invasive.

ditto...European Buckthorn - invasive.

Definitely buckthorn, terribly invasive...you'll want to dig them out while they are small. Larger ones will regrow if you cut them off, so you have to paint with roundup when you cut...there's tons of internet info out there on how to clean up buckthorn properly.
Don't let them get going, if you only have those ones you have time to keep control.

Thanks for the info , guys. There are many in the woods, that's just the ones on the edge of my yard.. Lots of those and the Norway maples. Also there are tons of a similar tree to the buckthorn , but they actually have huge thorns , although I don't know what they are either. Its sad the way these things can take over. I was walking in the woods and happened to follow the trunk of a very tall tree and at the very top there were beautiful pink flowers on it.. Idk if it's a magnolia or a dogwood but either way it's smothered and has no leaves but at the top so high I could barely see the flowers in the sun. :( the maples are crowding out all of the pine trees as well but I'm not able to restore an entire forest.

This post was edited by RachaelLemmon on Thu, May 22, 14 at 19:01