Larus cachinnans

(last update: February 16, 2013)

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

Home

cachinnans plumages

Larus cachinnans 1CY-2CY PKSD August 2012 - June 2013, Minden & Dümmer, Germany. Picture: Armin Deutsch.

Yellow PKSD and metal PLG DN-28696; ringed as pullus on May 25 2012 at Kozielno, Paczkow, S-SW Poland, (50°28' N,  16°58' E).

Recoveries:
PKSD 25-05-2012 ZB. Kozielno, Paczkow 50°28'35" N 16°58'54" E
PKSD 02-08-2012 Deponie Pohlsche Heide 52°23' N 08°46' E
PKSD 09-08-2012 Deponie Pohlsche Heide 52°23' N 08°46' E
PKSD 04-10-2012 Deponie Pohlsche Heide 52°23' N 08°46' E
PKSD 28-06-2013 Lembruch, Dümmer 52°31'29"  08°21'21"

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).

PKSD is classic cachinnans.

below cachinnans 1CY PKSD August 02 2012, Deponie Pohlsche Heide - Minden, Germany (52°23'05N, 08°46'45E). Picture: Armin Deutsch.

Bird in juvenile plumage.

below cachinnans 1CY PKSD August 09 2012, Deponie Pohlsche Heide - Minden, Germany (52°23'05N, 08°46'45E). Picture: Armin Deutsch.

Classic tail pattern and nice venetian blind effect (dark outerwebs and pale innerwebs on inner primaries).

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

All scapulars and several inner wing-coverts replaced in post-juvenile moult.

below cachinnans 1CY PKSD June 28 2013, Lembruch-Dümmer, Germany (52°31'N, 08°21'E). Picture: Armin Deutsch.

Bird in complete moult: P1-P4 fully grown, P8-P10 old juvenile. Moult gap in central GC, exposing old juvenile secondaries underneath.