Larus cachinnans

(last update: February 16, 2013)

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

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cachinnans plumages

Larus cachinnans 1CY-2CY PEHH October 2011 & June 2012, Deponie Pohlsche Heide - Minden, Germany (52°23'05N, 08°46'45E). Picture: Armin Deutsch.

Yellow PEHH and metal PLG DN-18886; ringed as pullus on May 10 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:
PEHH DN 18886 10-5-2011 Zwirownia, Zakole A, Jankowice Babice pull 50°02' N 19°28' E
PEHH DN 18886 13-10-2011 Deponie Pohlsche Heide 1cy 52°23' N 08°46' E
PEHH DN 18886 14-6-2012 Deponie Pohlsche Heide 2cy 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). PEHH is classic cachinnans.

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

Classic bird, in jizz, pattern of scapulars, replacement of some coverts, venetian blind on inner primaries, pale underwing and tail pattern.

below: cachinnans 2CY PEHH June 14 2012, Deponie Pohlsche Heide - Minden, Germany (52°23'05N, 08°46'45E). Picture: Armin Deutsch.

Complete moult: P2/P6, P3 almost fully grown. P4-P5 missing. All secondaries and rectrices old juvenile. New MC growing.

below: 2x cachinnans in complete moult. Note differerences in covert patterns.