Cormorant or Shag?

A mixed day with a morning of driving to a ‘soft burlesque’ workshop, which was basically gentle exercise (done in an elegant way!!) for the older lady!!! It was good fun and not too strenuous!!! I probably looked a sight too!!
I then went to see Dot in the Hospice. She wasn’t good today. Once home I stretched my legs and walked down to my local pond where I saw this bird. I’ve not seen one down there before and wish I had a decent camera and knowledge of wildlife!