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Résumé :
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In their paper dealing with the migration routes, staging sites and wintering area of geolocated Sabine's Gulls Xema sabini from Northeast Greenland, Stenhouse et al. (2012) omitted to mention some major publications dealing with the migration routes along the West African coast and the Namibian/South African winter quarters of Sabine's Gull. First of all, Mayaud (1961), while commenting on the records by Roux (1961) of migrating individuals in May 1961 along the coasts of Mauritania and Western Sahara, has discussed what was already known at the time of the migration routes of this species along the Atlantic French coast and the coast of North West Africa. He could only suspect that the wintering area was indeed located more to the south and he thought that it was in the waters off southern Africa. This was confirmed by Zoutendyk (1965,1968) who published its records of wintering Sabine's Gull (1963-1967) off South West Africa (as acknowledged by Mayaud, 1965 and correctly mentioned by Stenhouse et al., 2012). But the location and extension of the wintering area of Sabine's Gull were indeed precisely documented by the late Kurt Lambert during travels on an East German vessel cruising in the offshore waters in the southern part of Africa. He published his data in twopa-pers (Lambert, 1967 -with a map showing the location of the species' wintering range- and 1975; see also SCHARFFETTER, 1982 for additional data). Thus the paper by Stenhouse et al. (2012) confirms what was already known since some decades ago. Moreover the papers in French by N. Mayaud and F. Roux and those in German by K. Lambert and further records in Atlantic Africa have been summarized in German by Glutz von Blotzheim & Bauer (1981) (see the accurate map p. 202 showing the species' flyways and winter quarter) and in English by Cramp & Simmons (1983). Further records along the coast of Mauritania are mentioned by Lsen-MANN et al. (2010).
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