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 0.19 (was D|A) 1CY-5CY, 2021-2025, the Netherlands. Picture: Thijs Horst, Mars Muusse & Leon Kelder.
Tibia ring b-D|A and metal NLA
5.556.744 (see link for images), ringed as pullus Larus cachinnans on May 14 2021 at nest M01 21 in colony De Kreupel, the Netherlands (5247.00 N 513.00 E) - ringer Leon Kelder.
Trapped again: new tarsus ring y-0.19 and new metal NLA 5.557.905 and with GPS 6504, ringed as breeding 4CY Larus cachinnans on April 26 2024 at nest Q5 - De Kreupel, the Netherlands (5247.00 N 513.00 E).
Ringer Kees Camphuysen & Leon Kelder.
Recoveries b-D|A:
13-08-2021 Markermeer (Trintelzand), Flevoland, NL 5.238,00 N 522,00 E colourring read Merijn Loeve
29-10-2021 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst
20-11-2021 Almere (Dashorstdijk), Flevoland, NL 5.225,00 N 512,00 E colourring read Jan Zorgdrager
04-12-2021 Almere (De Blocq van Kuffeler), Flevoland, NL 5.225,00 N 513,00 E colourring read Eric Roeland
10-12-2021 Almere (De Blocq van Kuffeler), Flevoland, NL 5.225,00 N 513,00 E colourring read Eric Roeland
06-03-2022 Almere (De Blocq van Kuffeler), Flevoland, NL 5.225,00 N 513,00 E colourring read Eric Roeland
10-04-2022 Almere (De Blocq van Kuffeler), Flevoland, NL 5.225,00 N 513,00 E colourring read Eric Roeland
01-12-2022 Almere (Dashorstdijk), Flevoland, NL 5.225,00 N 512,00 E colourring read Thijs Horst
22-01-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
28-02-2023 Almere (Dashorstdijk), Flevoland, NL 5.225,00 N 512,00 E colourring read Thijs Horst & Eric Roeland
17-03-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst
07-04-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
06-07-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
19-10-2023 Lelystad (Oostvaardersdijk), Flevoland, NL 5.228,00 N 519,00 E colourring read Thijs Horst
29-11-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst
01-12-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst
06-12-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Gabi Martin & Thijs Horst
05-01-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
06-01-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
12-01-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read T. Horst & M. Muusse
26-04-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E captured by ringer Kees Camphuysen
Ring replaced by Kees Camphuysen. Data for y-0.19:
| 2024 | 04 | 26 | Handled 13:25-13:48, HPAIV swab, blood, biometrics, moult, ringed, GPS 6504 att - was Arnhem 5556744 bD|A | De Kreupel eiland Q | NL | C.J. | Camphuysen |
| 2024 | 04 | 26 | Photo provided, in cage, when still tibia blauw D|A, with unringed partner | De Kreupel eiland Q | NL | Camera | Trap observation |
| 2024 | 11 | 15 | De Vaart, vuilverwerking, Almere | NL | Thijs | Horst | |
| 2024 | 11 | 20 | De Vaart, vuilverwerking, Almere | NL | Thijs | Horst | |
| 2024 | 11 | 21 | De Vaart, vuilverwerking, Almere | NL | Thijs | Horst | |
| 2025 | 01 | 03 | De Vaart, vuilverwerking, Almere | NL | Thijs | Horst | |
| 2025 | 01 | 15 | Photo provided foeragerend op GFT afval | De Vaart, vuilverwerking, Almere | NL | Thijs | Horst |
| 2025 | 04 | 01 | Photo provided, harness seems too tight around neck, perhaps due to some recent prey swallowing event, does not look good | De Vaart, vuilverwerking, Almere | NL | Thijs | Horst |
| 2025 | 04 | 08 | Gelokt met brood, geen plaats | De Kreupel | NL | Thijs | Horst |
| 2025 | 04 | 10 | Op GFT afval | De Vaart, vuilverwerking, Almere | NL | Thijs | Horst |
below: Caspian Gull cachinnans 0.19 (was D|A) 5CY, April 10 2025, Almere - De Vaart, the Netherlands. Picture: Thijs Horst.
below: Caspian Gull cachinnans 0.19 (was D|A) 5CY, April 08 2025, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.
In better shape again.
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below: Caspian Gull cachinnans 0.19 (was D|A) GPS plot.
Tracks since August 1st, 2024, no reception since ~8 March 2025, wandering bird, wide-ranging, often on Marker Wadden.
below: Caspian Gull cachinnans 0.19 (was D|A) 5CY, April 01 2025, Almere - De Vaart, the Netherlands. Picture: Mars Muusse.
Struggling with its logger-harness.
below: Caspian Gull cachinnans 0.19 (was D|A) GPS plot.
All ring-readings / field observations until January 2025.
below: Caspian Gull cachinnans 0.19 (was D|A) 4CY, November 20 2024, Almere - De Vaart, the Netherlands. Picture: Thijs Horst.
below: Caspian Gull cachinnans 0.19 (was D|A) 4CY, November 15 2024, Almere - De Vaart, the Netherlands. Picture: Thijs Horst.
below: Caspian Gull cachinnans 0.19 (was D|A) 4CY, November 01-11 2024, GPS plot.
below: Caspian Gull cachinnans 0.19 (was D|A) 4CY, April 26 2024, colony De Kreupel, the Netherlands. Picture: Leon Kelder - cameratrap.
Measurements:
Head+Bill: 135 mm
Gonys: 22,5 mm
Wing: 478 mm
Mass:
1410 gr
