Larus cachinnans

(last update: February 16, 2013)

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

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cachinnans plumages

Larus cachinnans 1CY PKZU September 12 - October 04 2012, Deponie Pohlsche Heide - Minden, Germany (52°23'05N, 08°46'45E). Picture: Armin Deutsch.

Yellow PKZU and metal PLG DN-28792; ringed as pullus on May 25 2012 at Kozielno, Paczkow, S-SW Poland, (50°28' N,  16°58' E).

Recoveries:
PKZU 25-5-2012 ZB. Kozielno, Paczkow 50°28'35" N 16°58'54" E
PKZU 12-9-2012 Deponie Pohlsche Heide 52°23' N 08°46' E
PKZU 15-9-2012 Deponie Pohlsche Heide 52°23' N 08°46' E
PKZU 20-9-2012 Deponie Pohlsche Heide 52°23' N 08°46' E
PKZU 4-10-2012 Deponie Pohlsche Heide 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).

PKZU is classic cachinnans.

below: cachinnans 1CY PKZU September 12 2012, Deponie Pohlsche Heide - Minden, Germany (52°23'05N, 08°46'45E). Picture: Armin Deutsch.

Most upper scapulars replaced, lowest row of scapulars still juvenile with simple pale fringe, no notching. Single wing-coverts replaced in post-juvenile moult as well. Tertials juvenile. Much patterning on underwing, classic view in flying bird from above.

below: cachinnans 1CY PKZU October 04 2012, Deponie Pohlsche Heide - Minden, Germany (52°23'05N, 08°46'45E). Picture: Armin Deutsch.

Single coverts replaced in left wing.