nominate Lesser Black-backed Gull (L. f. fuscus)
(last update:
Amir Ben Dov (Israel)
Hannu Koskinen (Finland)
Mars Muusse (the Netherlands)
fuscus 1cy July
fuscus 1cy Aug
fuscus 1cy Sept
fuscus 1cy Oct
fuscus 1cy Nov
fuscus 1cy Dec
fuscus 2cy Jan
fuscus 2cy Feb
fuscus 2cy March
fuscus 2cy April
fuscus 2cy May
fuscus 2cy June
fuscus 2cy July
fuscus 2cy Aug
fuscus 2cy Sept
fuscus 2cy Oct
fuscus 2cy Nov
fuscus 2cy Dec
fuscus 3cy Jan
fuscus 3cy Feb
fuscus 3cy March
fuscus 3cy April
fuscus 3cy May
fuscus 3cy June
fuscus 3cy July
fuscus 3cy August
fuscus 3cy Sept
fuscus 3cy October
fuscus 3cy Nov
fuscus 3cy Dec
fuscus 4cy Jan
fuscus 4cy Feb
fuscus 4cy March
fuscus 4cy April
fuscus 4cy May
fuscus 4cy June
fuscus 4cy July
fuscus 4cy Aug
fuscus 4cy Sept
fuscus 4cy Oct
fuscus 4cy Nov
fuscus 4cy Dec
fuscus ad Jan
fuscus ad Feb
fuscus ad March
fuscus ad April
fuscus ad May
fuscus ad June
fuscus ad July
fuscus ad Aug
fuscus unringed Aug
fuscus ad Sept
fuscus ad Oct
fuscus ad Nov
fuscus ad Dec
Larus fuscus fuscus & L. f. intermedius, upper-part coloration in Scandinavia.
Illustration based on E. K. Barth: The circumpolar systematics of Larus argentatus and Larus fuscus with special reference to the Norwegian populations, IN: Contribution No. 86, Zoological Museum, University of Oslo.
Although figures have been prepared with most care, I take full responsibility for all errors in any chart and table.
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