Posted these up elsewhere, but not had many replies.
The first pictures (1-3) are of a flock of Geese (22nd of Aug. last year). I was thinking they were Pinkfeet, arriving a few weeks earlier than usual. The coast would obviously be the first place they arrived. I was also unsure if there were any other goose species among, or if they were all just the same species.
The second batch (3-5 and Post #2) are black and white geese, also seen 22 Aug. last year. I was thinking along the lines of Barnacles, only because the face is so white, unlike a Brent or Canada. They have quite dark underbellies, which was swaying me D-B Brent's way, but the face is almost completely white with a black crown. The only goose that has a head so white would be a Barnacle.