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 0.J adult, 2024-2025, the Netherlands. Picture: Thijs Horst & Mars Muusse.
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Bird from
Tibia R-0J and metal Arnhem NLA 6.214.040, ringed as >4cy male Larus cachinnans on April 29 2022 at colony De Kreupel, nest G1 on island G (5247.00 N 513.00 E). Ringer: Roland-Jan Buijs.
Recoveries:
12-01-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read T. Horst & M. Muusse
18-01-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 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
26-04-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
11-04-2025 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
18-07-2025 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst & M. Loeve
Data for nest G1-2022:
| 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 |
| 29-4-2022 | 3 eggs | ||||||||||||
| trapped adult Caspian Gull | 6214040 | Red 0.J | 463 | 123.7 | 55.3 | 909 | 72.1 | 17.1 | 1075 | ||||
| 13-5-2022 | 3 eggs | ||||||||||||
| 26-5-2022 | 3 pulli in nest | 5623603 | Red 4.C | 55.8 | 89 | ||||||||
| colour ring r-3.M re-used here | 5623575 | Red 3.M | 62.6 | 160 | |||||||||
| colour ring r-3.P re-used here | 5623577 | Red 3.P | 60.7 | 147 | |||||||||
| 26-5 - 27-5-2022 camera trap: | Caspian Gull male r-0.J | ||||||||||||
| hybrid Caspian Gull female unringed | |||||||||||||
below: Caspian Gull cachinnans 0.J adult, March 04 2024, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans 0.J adult, January 12 2024, Almere - De Vaart, the Netherlands. Picture: Thijs Horst & Mars Muusse.
