I'm guessing these are a forlorn hope, as they were some distance away and flying, and are in juvenile plumage, but thought I'd give it a go anyway...
https://www.flickr.com/photos/41442363@N08/40944325524/in/dateposted-public/
https://www.flickr.com/photos/41442363@N08/40944325734/in/dateposted-public/
https://www.flickr.com/photos/41442363@N08/40944325524/in/dateposted-public/
https://www.flickr.com/photos/41442363@N08/40944325734/in/dateposted-public/