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 6.M 1CY-4CY, May 2022 - April 2025, Germany & the Netherlands. Picture: Gerd Pellner, Thijs Horst & Mars Muusse.
Red tibia ring r[6.M] and metal NLA 5.625.164, ringed as pullus Larus cachinnans at nest 139 on May 22 2022 in colony Lelystad, the Netherlands. Ringer: Jeroen Nagtegaal.
ID uncertain in 2022: one parent is adult cachinnans-type, other parent is adult argentatus-type.
Recoveries:
30-08-2023 Schleswig, Schleswig-Holstein, DUITSLAND 5.431,00 N 933,00 E colourring read Gerd Pellner
15-12-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
29-12-2023 Bunschoten-Spakenburg (Visverwerker), Utrecht, NL 5.215,00 N 523,00 E colourring read Hans van Muiswinkel
31-12-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
02-01-2024 Oss (Vuiloverslag), Noord-Brabant, NL 5.147,00 N 532,00 E colourring read Tim Raats
03-01-2024 Oss (Vuiloverslag), Noord-Brabant, NL 5.147,00 N 532,00 E colourring read Tim Raats
06-01-2024 Oss (Vuiloverslag), Noord-Brabant, NL 5.147,00 N 532,00 E colourring read Tim Raats
12-01-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read T. Horst & M. Muusse
21-03-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
01-04-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
Data and visits for 2022
| 27-Apr-22 | 3 eggs | A egg | 73,5 | 50,5 | tip bottom - 70 gr | Flag 139 attached. | |
| B egg | 72,5 | 52,3 | tip bottom - 40 gr | ||||
| C egg | 70 | 51 | tip bottom - 40 gr | ||||
| 29-Apr-22 | 2 adults. | female has thin P5 band and standing bird is HG type. | |||||
| male has cachinnans wing, but bulbuous bill | |||||||
| 01-May-22 | together with LBBGs | ||||||
| 04-May-22 | partner 1 present. Images | ||||||
| metal | darvic | mass | wing | H+B | |||
| 22-May-22 | pullus | .5625162 | r-6K | 158 | 33 | 62,8 | |
| pullus | .5625163 | r-6L | 160 | 35 | 63,4 | ||
| pullus | .5625164 | r-6M | 98 | 30 | 55,8 | ||
| 21-Jun-22 | pullus | r-6.L on blocks at nest 135. | |||||
| partner 2 is defending chick | |||||||
below: Caspian Gull cachinnans 6.M 4CY, April 23 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.
below: Caspian Gull cachinnans 6.M 4CY, April 01 2025, colony Lelystad, the Netherlands. Picture: Mars Muusse.
below: Caspian Gull cachinnans 6.M 3CY, January 12 2024, Almere - De Vaart, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans 6.M 2CY, August 30 2023, Schleswig, Ghermany. Picture: Gerd Pellner.
Caspian Gull cachinnans 6.M 1CY, July 17 2022, Lelystad, the Netherlands. Picture: Thijs Horst & Mars Muusse.
Caspian Gull cachinnans 6.M 1CY, June 28 2022, Lelystad, the Netherlands. Picture: Thijs Horst & Mars Muusse.
r[6.M] cachinnans from nest 139. Picture: June 28th, 2022.
Fledged. Sibling r[6.L] also fledged. Sibling r[6.K] ringed on May 22nd. No observations since.
Caspian Gull cachinnans 6.M 1CY, May 22 2022, Lelystad, the Netherlands. Picture: Mars Muusse.
