From dirt to locust

I met a forester a few years ago and he told me that if you took a bare, plowed farmers field, and just let it go, you would get a locust forest in central PA. This field was bare about 7 years ago, and this is what it looked this morning when i took a hike. Guy was right.

 

Too early for black locust blooms. That is ornamental pear. (At least it looks like it from here) Wouldn't be surprised if there are a few black locust saplings in the mix as well.
If the flowers stink....it's pear.

 

Might be, but they have half inch thorns on them

 

Not pear then...pear trees won't have thorns. Might be some Hawthorns? Down where I live in Northern Kentucky the ornamental pears are all over the place.

 

Those look awfully uniform in spacing and height, like something intentionally planted.

 

They are of different heights, completely random, and they weren't planted as it is a property neighboring mine. I saw it grow from the field to these pictures.

As far as species, I walked into the grove and got three closer ones.

 

Very pretty, whatever it is.

 

Sure is pretty .
Bet the honey bees are all over them .

Hard to tell in the pics
maybe Crab apple ?