nominate Lesser Black-backed Gull (L. f. fuscus)

(last update: 1-3-2010)

Larus fuscus fuscus 2cy CJJR, June-August 2005, Tara dump, Tampere, Finland. Pictures Hannu Koskinen & Visa Rauste.

This bird has been ringed in 2003 in Kuhmalahti Finland (61.51 N, 24.44 E).
1-3: © Visa Rauste, 28-05-05; 4: © Hannu Koskinen, 15-06-05; 5: © Visa Rauste, 02-07-05; 6-7: © Hannu Koskinen, 23-07-05; 8: © Visa Rauste, 02-08-05; 9: © Visa Rauste, 16-08-05; 10: © Hannu Koskinen, 28-08-05; 11: © Visa Rauste, 28-08-05. Tampere, Finland.

Overall, CJJR is a less advanced-looking bird than the previous individuals. Nonetheless, at the end of May (plates 1-3), the tail, most secondaries and P1-7 have been renewed; only the outer primaries (P8-10) and some inner secondaries in the right wing still are juvenile. P7 is still growing and P3 in the left wing seems to be missing. Throughout June, the three juvenile primaries are retained (plates 4-5) and towards the end of July, P10 is still present (plates 6-7). Only at the beginning of August, the last juvenile primary has disappeared; P7 then is fully grown (plate 8). CJJR was last seen at the end of August; at that date, P9-10 were not yet fully grown (plates 10-11).

below: fuscus fuscus 2cy CJJR, May 28 2005.

P8-P10 still juvenile. P7 growing, P1 missing in left wing.

below: fuscus fuscus 2cy CJJR, June 15 2005.

below: fuscus fuscus 2cy CJJR, June 18 2005.

P8-P10 still juvenile. P7 fully grown last week.

below: fuscus fuscus 2cy CJJR, July 02 2005.

P8-P10 still juvenile. Note missing central MC.

below: fuscus fuscus 2cy CJJR, July 23 2005.

P10 old juvenile.

below: fuscus fuscus 2cy CJJR, August 02 2005.

P8-P10 dropped. New MC.

below: fuscus fuscus 2cy CJJR, August 16 2005.

P8 fully grown. New MC and upper TT.

below: fuscus fuscus 2cy CJJR, August 28 2005.

P8 fully grown, P9-P10 growing.