The black guillemot is a lovely seabird that particularly likes Scottish harbours. The only places we've ever seen them are the harbours at Oban; Ardrossan (on the way to Arran) and Brodick (on Arran). As well as the smart plumage you can see in the photo they have lovely red legs and a red gape. We enjoyed watching them swimming around and chasing each other as we waited for our ferry to take us back from Arran. Hopefully if you click on the photos, you'll get a bigger version.