Common Guillemot Taken on Farne Islands on 18th April 2022 using Nikon D500 with Sigma 600 mm zoom lens   Winter Plumage Taken at Musselburgh on 14th November 2021 using Nikon D500 with Sigma 600 mm zoom lens. Juvenile Taken on Oban to Islay Ferry on 5th July 2017 using Nikon D5200 with Sigma 600 mm zoom lens. Taken on Farne Islands on 18th April 2022 using Nikon D500 with Sigma 600 mm zoom lens Common Guillemot. Species : Order: Family: Local names: Uria aalge. Charadriiformes. Alcidae. Common Murre. Site Of Nest: Food: Plumage: Breeding Period: Eggs: Length: Wingspan: They make no nest. A single egg is incubated on bare rocks. Small schooling fish 200 mm long or less, such as polar cod, capelin, sand lances, sprats, sandeels, Atlantic cod and Atlantic herring. Black on the head, back and wings, with white underparts. It has a thin dark pointed bill and a small rounded dark tail. After the breeding moult, the face is white with a dark spur behind the eye. Some birds have a white eye ring, extending back as a line . These are known as bridled guillemots May and July for the Atlantic populations and March to July for those in the Pacific. Various colours and patterns to help parents recognise their egg in large breeding colonies. 38–46 cm 61–73 cm Voices: