Larus cachinnans

(last update: February 16, 2013)

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cachinnans in Poland

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cachinnans plumages

1cy August
1cy September
1cy October
1cy November
1cy December

2cy January
2cy February
2cy March
2cy April
2cy May
2cy June
2cy July
2cy August
2cy September
2cy October
2cy November
2cy December

3cy January
3cy February
3cy March
3cy April
3cy May
3cy June
3cy July
3cy August
3cy September
3cy October
3cy November
3cy December

sub-adult January
sub-adult February
sub-adult March
sub-adult April
sub-adult May
sub-adult June
sub-adult July
sub-adult August
sub-adult September
sub-adult October
sub-adult November
sub-adult December

adult January
adult February
adult March
adult April
adult May
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adult July
adult August
adult September
adult October
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adult December

Larus cachinnans 2CY-3CY PHKB October 2012, Minden, Germany & January 2013, Sonzay Indre-et-Loire, France.

Yellow PHKB and metal PLG DN-27232; ringed as pullus on May 26 2011 at Kozielno, Paczkow, S-SW Poland, (50°29' N,  16°58' E).

Ringed yellow PHKB and metal DN27232, ringed as pullus on May 26 2011 at Kozielno Paczkow Opolskie Poland (50,48 19,97).

Recoveries:

PHKB	26-5-2011	ZB. Kozielno, Paczkow	pull	50°29' N	16°58' E
PHKB	9-4-2012	SPROITZ: SATZFISCHANLAGE (DRESDEN, GERMANY)	2cy
PHKB	4-10-2012	Deponie Pohlsche Heide	2cy	52°23' N	08°46' E
PHKB	8-10-2012	Deponie Pohlsche Heide	2cy	52°23' N	08°46' E
PHKB	5-1-2013	Sonzay Indre-et-Loire, France	3cy

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). PHKB is classic cachinnans.

below: cachinnans 2CY PHKB October 04 2012, Deponie Pohlsche Heide - Minden, Germany (52°23'05N, 08°46'45E). Picture: Armin Deutsch.

End of complete moult, P10 fully grown, with a small but obvious mirror. Many 2CY cachinanns have a subsequent partial autumn moult in September-October; this bird is no exception. The partial moult included again (for the 2nd time this year) GC1-2, MC1-2, few outermost LLC, TT1-2.
Last replaced scaps are adult-like grey, but still with obvious dark shaft streak.

below: with 1CY cachinnans PKSD.

below: compare 2CY October cachinnans PHKB with 2CY October argentatus H70W.

H70W still in complete moult (P8 fully grown) and overall pattern is very 2nd gen-like with bold chequered lines and vermiculation on all coverts and scaps.

below: cachinnans 3CY PHKB January 05 2013, Sonzay Indre-et-Loire, France. Picture: Patrick Derrien.

Several feathers replaced again in partial autumn moult: upper tertials, inner GC, inner MC. No complete grey saddle.