Which Oak?

Which Oak?

Observation - Which Oak? - UK and Ireland. Description: This is a small oak tree that I found as a sapling around 2 years ago in a grazed paddock and decide

This is a small oak tree that I found as a sapling around 2 years ago in a grazed paddock and decided to save from the ponies. Not knowing one oak from he next I thought I was doing a good deed but having had a very quick lesson from a friend the other day about how to tell them apart I suspect this might actually be the invasive and ecologically harmful Turkey Oak. If someone could confirm or deny my theory that would be great.