Coordinator:
Albert de Jong
Merijn Loeve
Roland-Jan Buijs
Thijs Horst
Leon Kelder
Mars Muusse
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Herring Gull argenteus 0.H adult, July 13 2025, colony De Kreupel - island D, the Netherlands. Picture: Thijs Horst & Mars Muusse.
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Tibia ring r-0H and metal NLA 6.214.039, ringed as adult female Larus argentatus on April 29 2022 at nest D7 at De Kreupel, Holland (5247.00 N 513.00 E) - ringer Roland-Jan Buijs.
Recoveries:
08-07-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
26-08-2023 Medemblik (Marina), Noord-Holland, NL 5.246,00 N 507,00 E colourring read Wim de Lange
13-07-2025 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst, M. Muusse & N. Colpaert
Data for this nest:
Bird from De Kreupel, nest D7 on island D.
Date: |
Egg code |
Height (mm) |
Width (mm) |
Comments |
Metal NLA |
Colour ring |
Wing (mm) |
Head+ bill (mm) |
Bill (mm) |
Mass (gr) |
Tarsus |
Gonys |
Swab no |
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29-4-2022 |
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3 eggs |
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trapped adult Herring Gull |
6214039 |
Red 0.H |
419 |
109.5 |
47.8 |
791 |
62.4 |
18.6 |
1073 |
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13-5-2022 |
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3 eggs |
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26-5-2022 |
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1 pullus in nest |
5623606 |
Red 4.F |
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50.7 |
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90 |
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Caspian Gull w-201:U alarming over nest location |
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below: Herring Gull argenteus 0.H adult, July 13 2025, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.

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