The Lesser Black-backed Gull (Goéland brun, Larus fuscus) is the most abundant gull along the Atlantic Sahara shore, both on migration and in winter. L. f. graellsii is the commonest subspecies, intermedius is also common.
The occurrence of the subspecies fuscus has been envisaged (e.g. at Dakhla: at least one on 25 September 2006 – P.A. Crochet & J.P. Renoult in NNSAM7 ; three on 23 January 2012 – C. Bermejo et al. in NNSAM5), but has so far not been verified by the control of ringed birds.
Pedro Fernandes was lucky enough to get pictures of a L. f. fuscus at Dakhla on 24 February 2017. This record is thus the first authenticated record of a Baltic Gull in the Atlantic Sahara.
This bird (colour ring MS79 white) was ringed at Lilla Karlsö in Gotland, Sweden (57°19’N 18°04’E) on 25 June 2013.