Larus cachinnans

(last update: February 16, 2013)

Coordinator:
Peter Adriaens (Belgium)
Ies Meulmeester (Netherlands)

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cachinnans plumages

Larus cachinnans 1CY PHEN October & November 2011, Deponie Pohlsche Heide - Minden, Germany (52°23'05N, 08°46'45E). Picture: Armin Deutsch.

Yellow PHEN and metal PLG DN-27210; ringed as pullus on May 24 2011 at Zwirownia Zakole A, Jankowice - Babice, Poland (50,02N 19,28E). Zwirownia = gravel pit, this colony is situated between the towns of Babice and Jankowice in a gravel pit.

Recoveries:
PHEN 24-5-2011 Zwirownia, Zakole A, Jankowice Babice pull 50°02' N 19°28' E
PHEN 13-10-2011 Deponie Pohlsche Heide 1cy 52°23' N 08°46' E
PHEN 20-10-2011 Deponie Pohlsche Heide 1cy 52°23' N 08°46' E
PHEN 28-10-2011 Deponie Pohlsche Heide 1cy 52°23' N 08°46' E
PHEN 16-11-2011 Deponie Pohlsche Heide 1cy 52°23' N 08°46' E

In this area are mixed breeding colonies (near Katowice), with far most birds breeding here are cachinnans, but in this area also records of very few michahellis from the south (e.g. ringed female from Italy) and argentatus from eastern Germany are possible (see PDF). PHEN is classic cachinnans.

below: cachinnans 1CY PHEN October 13 2011, Deponie Pohlsche Heide - Minden, Germany (52°23'05N, 08°46'45E). Picture: Armin Deutsch.

Almost all scaps replaced. Covert and tertials still juvenile. All flight feathers juvenile. Very barred pattern on greater coverts, similar to argentatus.

below: cachinnans 1CY PHEN November 16 2011, Deponie Pohlsche Heide - Minden, Germany (52°23'05N, 08°46'45E). Picture: Armin Deutsch.

All scaps replaced. Covert and tertials still juvenile. All flight feathers juvenile.

below: someone lost a leg...