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 2.F 1CY-4CY, 2022-2025, England & the Netherlands. Picture: Wayne Turner, Mars Muusse & Thijs Horst.
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Tibia red 2.F and metal NLA 5.623.537, ringed as pullus Caspian Gull (Larus cachinnans) on 13-05-2022 at colony De Kreupel (IJsselmeer), the Netherlands (NL 5247.00 n 513.00 E), by ringer Leon Kelder.
Recoveries:
23-08-2022 L'Erée (Strand), Guernsey, ENGELAND 4.927,00 N 239,00 W colourring read Wayne Turner
15-04-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
20-04-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst
16-06-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
04-07-2024 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
08-04-2025 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst & M. Muusse
13-06-2025 Markermeer (Marker Wadden), Flevoland, NL 5.235,00 N 522,00 E colourring read Thijs Horst
11-07-2025 Markermeer (Marker Wadden), Flevoland, NL 5.235,00 N 522,00 E colourring read Thijs Horst
Data for this nest in 2022
Bird from De Kreupel, nest M7 on island M. Parent is r-0D.
| Date: | Egg code | Height (mm) | Width (mm) | Comments | Metal NLA | Colour ring | Wing (mm) | Head+ bill (mm) | Bill (mm) | Mass (gr) | Gonys | Tarsus | Swab no |
| 14-4-2022 | A-egg | 65.9 | 50.7 | 1 egg | |||||||||
| 29-4-2022 | 2 eggs | ||||||||||||
| Adult trapped, Caspian Gull | 6214035 | Red 0.D | 435 | 126.6 | 58.2 | 877 | 17.7 | 73.1 | 1067 | ||||
| 13-5-2022 | 2 pulli in nest | 5623537 | Red 2.F | 50.4 | 80 | ||||||||
| 5623538 | Red 2.G | 52.3 | 93 | ||||||||||
| 20-5-2022 | 1 dead chick: NLA 5623538 & r-2G | ||||||||||||
| prey: 1 head of young Hare | |||||||||||||
| 12-5 - 14-5-2022 camera trap: | female Caspian Gull r-0D | ||||||||||||
| male Caspian Gull | |||||||||||||
below: Caspian Gull cachinnans 2.F 4CY, April 08 2025, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.
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below: Caspian Gull cachinnans 2.F 3CY, July 30 2024, colony De Kreupel, the Netherlands. Picture: Thijs Horst.
below: Caspian Gull cachinnans 2.F 2CY, April 20 2023, Almere - De Vaart, the Netherlands. Picture: Thijs Horst.
below: Caspian Gull cachinnans 2.F 1CY, August 23 2022, L'Eree - Guernsey, England. Picture: Wayne Turner.
