Larus cachinnans

(last update: February 16, 2013)

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cachinnans in Poland

cachinnans in Holland

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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
adult June
adult July
adult August
adult September
adult October
adult November
adult December

Larus cachinnans 1CY 1P00 October 2013 & April 2014, The Netherlands. Photo: Fred Visscher & Capser Groenewegen.

Ringed as pullus in 2013 at Urszulin Wytyckie Lake, E Poland (51°25'N  23°12'E). In 2012 this colony only held breeding cachinnans, Urszulin Wytyckie Lake: year 2012 – 150 pairs cachinnans. (pers comm. Łukasz Bednarz), see these data.

below: cachinnans 1CY 1P00 October 26 2013, Leidschendam, The Netherlands. Photo: Capser Groenewegen.

New 2nd gen scapulars with bold patterns. Single lower scaps still juvenile. All tertials and wing-coverts still juvenile, albeit some feathers show an obviously different pattern than adjacent feathers (e.g. GC5, LLC4).

below: cachinnans 2CY 1P00 April 07 2014, Medemblik, the Netherlands. Picture: Fred Visscher.

Still streaking on head and black bill.