Coordinators:
Albert de Jong
Leon Kelder
Roland-Jan Buijs
Thijs Horst
Merijn Loeve
Mars Muusse
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Caspian Gull cachinnans V|W 2CY, September 21 2026, Katwijk, the Netherlands. Picture: Annelies Marijnis.
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Please send in your observations of colour ringed birds to: ring@buijsecoconsult.nl |
Tibia G-V|W and metal NLA 5.639.119 ringed as pullus Larus cachinnans on May 09 2025 at IJsselmeer (De Kreupel), Holland, NL 5247.00 N 513.00 E, by ringer Leon Kelder.
Recoveries:
31-08-2025 Ter Heijde (Zandmotor), Zuid-Holland, NL 5.203,00 N 411,00 E colourring read Leo Snellink
21-09-2026 Berkheide (Strand), Zuid-Holland, NL 5.210,00 N 421,00 E colourring read Annelies Marijnis
Data for nest M13 - 2025.
| Metal ring |
Colour ring |
Date |
Species |
Age |
Clutch size |
Location |
Nest code |
Ringer |
Head+Bill |
Mass |
Wing |
Parents |
| NLA 5639117 |
g-V|T |
09-5-2025 |
Caspian Gull |
pullus |
3 eggs |
the Netherlands, De Kreupel - eiland M. |
M13 |
Leon Kelder |
57,3 |
121,0 |
|
|
| NLA 5639117 |
g-V|T |
30-5-2025 |
Caspian Gull |
pullus |
-- |
the Netherlands, De Kreupel - eiland M. |
M13 |
Leon Kelder |
|
|
|
|
| NLA 5639118 |
g-V|V |
09-5-2025 |
Caspian Gull |
pullus |
3 eggs |
the Netherlands, De Kreupel - eiland M. |
M13 |
Leon Kelder |
60,3 |
141,0 |
|
|
| NLA 5639118 |
g-V|V |
22-5-2025 |
Caspian Gull |
pullus |
-- |
the Netherlands, De Kreupel - eiland M. |
M13 |
Leon Kelder |
|
|
|
|
| NLA 5639119 |
g-V|W |
09-5-2025 |
Caspian Gull |
pullus |
3 eggs |
the Netherlands, De Kreupel - eiland M. |
M13 |
Leon Kelder |
62,4 |
140,0 |
|
|
below: Caspian Gull cachinnans V|W 2CY, September 21 2026, Katwijk, the Netherlands. Picture: Annelies Marijnis.

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