Lesser Black-backed Gull

Larus fuscus – GWYLAN GEFNDDU LEIAF – Breeding summer visitor, passage migrant, winter visitor

Lesser Black-backed Gull – 2003-07 breeding

Larus fuscus – GWYLAN GEFNDDU LEIAF – Breeding summer visitor, passage migrant, winter visitor Comparison with previous atlas: 1984-88 2003-07 Breeding confirmed 24 30 Breeding probable 1 6 Breeding possible excluded from total excluded from total No of tetrads occupied 25 (of 478) 36 (of 490) Percentage of tetrads 5.2% 7.3% Formerly the main colonies […]

Lesser Black-backed Gull – 1994

Larus fuscus – GWYLAN GEFNDDU LEIAF – Breeding summer visitor, passage migrant, winter visitor 1984-88 Breeding confirmed 24 Breeding probable 1 Breeding possible excluded from total No of tetrads occupied 25 (of 478) Percentage of tetrads 5.2% Mathew (1894) knew of colonies of 20-30 pairs which Lockley et al (1949) used as a datum to note a […]

Herring x Lesser Black-backed Gull hybrids

Harris, M.P. 1970. Abnormal migration and hybridization of Larus argentatus and L. fuscus after interspecies fostering experiments. Ibis 112: 488-498. Summary Between 1962 and 1966 eggs of Larus argentatus and L. fuscus were interchanged andalmost 900 young were reared by the wrong species. Many of these cross-fostered young were later recovered or retrapped on and away from the colonies. […]

Lesser Black-backed Gull – 1980s winter

Larus fuscus – GWYLAN GEFNDDU LEIAF – Breeding summer visitor, passage migrant, winter visitor The BTO winter atlas showed that Lesser Black-backed Gulls were present in most 10km squares during the winters of 1981-82, 1982-82 and 1983-84. The darker the colour, the higher the relative total count for each 10km square, the darkest blue represents over 46 […]

Scandinavian Lesser Black-backed Gull – 1949

Larus fuscus fuscus This race has been identified in winter at Haverfordwest (1947-48) by members of the West Wales Field Society (W. Simister).  One Skokholm 2 April 1934. R.M.Lockley, G.C.S.Ingram, H.M.Salmon, 1949, The Birds of Pembrokeshire, The West Wales Field Society More about the Lesser B-B Gull in Pembrokeshire

British Lesser Black-backed Gull – 1949

Larus fuscus graellsii “A common resident. Not so numerous as the Herring Gull” – Mathew, who says it bred 1894 in colonies of only 20-30 pairs, and if this was correct, it has increased considerably since.  In 1946 approx 800 pairs were breeding Skokholm, and 1000 pairs Skomer.  Breeds also Caldey, St Margaret’s, Ramsey and islands, […]

Lesser Black-backed Gull – 1894

Larus fuscus – A common resident. Not so numerous as the Herring Gull, this species is nevertheless, well represented in Pembrokeshire, and nests upon the various islands, selecting the ground on the topmost slopes of the cliffs, and there breeding in small societies of from twenty to thirty pairs, apart from the other Gulls, in places where it is perfectly easy […]

Lesser Black-backed Gull

Larus fuscus – GWYLAN GEFNDDU LEIAF – Breeding summer visitor, passage migrant, winter visitor