Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Albert de Jong
Merijn Loeve
Roland-Jan Buijs
Thijs Horst
Leon Kelder
Mars Muusse
Caspian Gull cachinnans B.= adult, 2022-2025, De Kreupel & Lelystad, the Netherlands. Pictures: Thijs Horst & Mars Muusse.
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Tibia ring R-B= and metal ring NLA Arnhem 6.214.032, ringed as adult male Larus cachinnans on April 29 2022 at IJsselmeer (De Kreupel), Holland (5247.00 N 513.00 E) - ringer Roland-Jan Buijs.
Recoveries:
23-05-2022 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
17-06-2022 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder & Maarten Hotting
01-07-2022 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Jeroen van Assema
17-07-2022 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
03-03-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst & M. Muusse
04-03-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst & M. Muusse
17-05-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
28-07-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst & M. Muusse
30-07-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read J. van Assema & T. Horst
07-09-2024 Andijk (Jachthaven), Noord-Holland, NL 5.244,00 N 510,00 E colourring read J. van Assema & T. Horst
08-04-2025 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst & M. Muusse
12-04-2025 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
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 breeding at De Kreupel, nest C14-2022 on island C. Parent is r-B=.
| Date: | Egg code | Height (mm) | Width (mm) | Comments | Metal NLA | Colour ring | Wing (mm) | Head+ bill (mm) | Bill | Mass (gr) | Tarsus | Gonys | Swab no |
| 14-4-2022 | A-egg | 70.0 | 51.8 | 2 eggs | |||||||||
| B-egg | 71.1 | 51.2 | |||||||||||
| 29-4-2022 | 3 eggs | ||||||||||||
| Adult trapped, Caspian Gull | 6214032 | Red B= | 463,5 | 136.2 | 63.9 | 1172 | 81.8 | 19.4 | 1063 | ||||
| 13-5-2022 | 3 pulli in nest | 5620237 | Red 0.W | 52.8 | 87 | ||||||||
| 5620238 | Red 0.X | 59.0 | 138 | ||||||||||
| 5620239 | Red 0.Y | 57.8 | 124 | ||||||||||
below: Caspian Gull cachinnans B.= adult, July 13 2025, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.
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below: Caspian Gull cachinnans B.= adult, April 08 2025, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans B.= adult, September 07 2024, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans B.= adult, July 30 2024, colony De Kreupel, the Netherlands. Picture: Thijs Horst.
below: Caspian Gull cachinnans B.= adult, July 28 2024, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans B.= adult, March 03-04 2024, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans B.= adult, July 17 2022, Lelystad, the Netherlands. Pictures: Thijs Horst & Mars Muusse.
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below: Caspian Gull cachinnans B.= adult, July 01 2022, De Kreupel, the Netherlands. Picture: Jeroen van Assema.
