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 adult, May 06 2012, Gatovo - Minsk, Belarus. Picture: Dmitry Goncharov.

Female with pulli.

Below: roof top nesting in Belarus.

This is what local ornithologist Dmitry says:
Last season I found on the roofs of industrial buildings near Minsk (Belarus), several breeding colonies (CG + HG + LBBG). The largest of these was located on the roof size 240х480 m in Gatovo village and included 1,830 nests cachinnans + argentatus + fuscus and part of the mixed pairs. I often have questions accurately identify taxa. Nests are located mainly at the base of rooflights, ventilators, often among the vegetation on the the broken stone-gravel. Most nests contained three eggs (the norm), and some even six (two females - adult + 4 cy). Hatching chicks began in May. Frequently observed bird deaths on various factors: man-made traps, overheating of the roof, falling flying chicks.