Identification update: moult variability in
polytypic species, comprising at least three subspecies: L. f. fuscus, L. f. intermedius and L. f. graellsii. The closely related L. [f.] heuglini, whose taxonomic position is not yet entirely clear (for which, see Liebers et al. 2001, Crochet et al. 2002, Liebers & Helbig 2002 and Yésou 2002),...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.670.640 http://gull-research.org/papers/14muusse.pdf |
| Summary: | polytypic species, comprising at least three subspecies: L. f. fuscus, L. f. intermedius and L. f. graellsii. The closely related L. [f.] heuglini, whose taxonomic position is not yet entirely clear (for which, see Liebers et al. 2001, Crochet et al. 2002, Liebers & Helbig 2002 and Yésou 2002), is not discussed in this article. The nomi-nate form occurs in the northernmost part of the breeding range of the species and breeds around the White Sea, the Baltic Sea and in northern Norway. The breeding grounds of intermedius, its close relative, are more southerly and westerly and comprise southern |
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