Larus cachinnans

(last update: February 16, 2013)

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cachinnans in Poland

cachinnans in Holland

cachinnans rings

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 XXEN September & November 2014, the Netherlands. Picture: Edwin Kerssens & Jacob Jan de Vries.

Data pending, probably ringed as pullus in Oberspreewald-Lausitz, Brandenburg, Germany (51°42'00"N 014°06'00"E). This is 100 km SE of Berlin and Lausitz holds a mixed colony in the lake. At this location ringing takes place in colonies of mixed species, with Herring, Caspian and Yellow-legged Gull, so identification is not always straight forward. The possibility that juveniles are not a pure bird is therefore not unlikely.

This green XXEN seems to be cachinnans, albeit with 'spread out' streaking on head (you would prefer it concentrated in the hindneck; overall streaking is more like in Herring Gulls).

below: Larus cachinnans 1CY XXEN September 14 2014, IJmuiden, the Netherlands. Picture: Edwin Kerssens.

Lower scapulars still juvenile. Coverts and tertials also juvenile.

below: Larus cachinnans 1CY XXEN November 18 2014, Terschelling, the Netherlands. Picture: Jacob Jan de Vries.

Coverts and tertials juvenile.