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 1.V 2CY-4CY, 2023-2025, the Netherlands & France. Picture: Sébastien Provost, Thijs Horst & Mars Muusse.
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Tibia ring R-1V and metal ring Arnhem NLA 5.623.519, ringed as pullus Larus cachinnans on May 13 2022 at De Kreupel, nest L13 on island L, ringed by ringer Leon Kelder.
Recoveries:
30-01-2023 Cuves (Vuilstort), Manche, FRANKRIJK 4.843,00 N 105,00 W colourring read Sébastien Provost
17-04-2023 Westerslag (Strand), Texel, NL 5.302,00 N 442,00 E colourring read Bob Loos
23-06-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
08-04-2025 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst & M. Muusse
12-05-2025 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
18-07-2025 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst & M. Loeve
Data for this nest in 2022
Parent is r-0G.
| 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 |
| 14-4-2022 | A-egg | 71.2 | 50.6 | 3 eggs | |||||||||
| B-egg | 74.5 | 49.4 | |||||||||||
| C-egg | 69.6 | 49.9 | |||||||||||
| 29-4-2022 | 3 eggs | ||||||||||||
| Adult trapped, Caspian Gull | 6214038 | Red 0.G | 466 | 132.2 | 62.2 | 75.6 | 19.5 | 1070 | |||||
| 13-5-2022 | 2 pulli outside nest | 5623518 | Red 1.U | 71.5 | 78.6 | 420 | |||||||
| 5623519 | Red 1.V | 66.0 | 76.5 | 400 |
below: Caspian Gull cachinnans 1.V 4CY, July 13 2025, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.
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below: Caspian Gull cachinnans 1.V 4CY, April 08 2025, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans 1.V 2CY, January 30 2023, Cuves - Manche, France. Picture: Sébastien Provost.
