Larus cachinnans

(last update: February 16, 2013)

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cachinnans plumages

1cy August
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2cy January
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3cy January
3cy February
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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 michahellis 1P31 adult, May 15 2013, Wytyckie Lake - Urszulin, Poland. Picture: Łukasz Bednarz ringing team.

Please visit Łukasz's BLOG for beautiful drawings and up-to-date gull news from eastern Poland: Wildlife art and illustration

For 2012, breeding location of 150 pairs cachinnans, of which 54 adults ringed and 158 pulli in 2012 (pers comm. Łukasz Bednarz).

Breeding bird trapped at the nest, obviously different from breeding cachinnans, therefore labeled in the database as "Larus argentatus sensu lato", but in all respects resembling adult michahellis (which it most likely is, but hybrid offspring not excluded).
Adult, with no limited speckling in iris. Red orbital ring and gape. No red on upper mandible (red on upper mandible commonly - and ideally - found in spring michahellis); black on the upper and black on the lower mandible. High, stubby bill. Saturated yellow legs.
Medium, grey, tongue on P10, broad band on innerweb of P8 (nice for michahellis), and broad black band on P5; no black spot on P4. P1 dropped; PMS=1.