Starlings?

Here are a couple of pictures I took recently in my garden.  This bird was a member of a larger group, and it was sitting at the top of a very tall tree, so the pictures are very zoomed in.  I am 90% sure that it is a Starling, but I was confused by the grey appearance of the head as I thought that starlings were all black, however, I think that this Starling may be one of the juveniles which were born earlier in the year!

If I am wrong, please let me know!