Coordinators:
Kjeld Tommy Pedersen (Denmark)
Chris Gibbins (Scotland)
Frank Majoor (Netherlands)
Mars Muusse (Netherlands)
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PDF's Larus canus
1cy June - August
1cy September - October
1cy November - December
2cy January - February
2cy March - April
2cy May - August
2cy September - October
2cy November - December
3cy January - February
3cy March - April
3cy May - August
3cy September - December
adult January - February
adult March - April
adult May - August
adult September - October
adult November - December |
Mew Gull canus E592 March 30 2002, Dintelhaven, Maasvlakte, the Netherlands.
A bird ringed as an adult at the current location, breeding again in the near vicinity.
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Mew Gull has a partial moult in spring. It starts in February and is completed by April, leaving birds in so-called "adult summer" plumage. The head turns white, with a red orbital ring. The bill turns all yellow or yellowish-green. In summer, head, neck, tail and under-parts are completely white. The upper-parts are medium grey. The outer primaries are black with large white tips. The inner primaries and secondaries are pale grey with a white tip, creating a white trailing edge. The white crescents on the tertials are very broad.
Adult brachyrhychus normally have a black sub-terminal band on P5-P10. Between this black band and the grey centre, a large white spot is visible both from above and below on P5-P7, creating a string of pearls on these primaries. P9 and P10 show a large white mirror. |