Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Albert de Jong
Merijn Loeve
Roland-Jan Buijs
Thijs Horst
Leon Kelder
Mars Muusse
Herring Gull argenteus (hybrid) 0.V 2CY-4CY, 2023-2025, the Netherlands. Picture: Eric Roeland & Thijs Horst & Mars Muusse.
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Tibia R-0V and metal NLA 5.620.236, ringed as pullus Larus cachinnans (and hybrids of that kind) on May 13 2022 at De Kreupel, Holland (5247.00 N 513.00 E). Ringer Leon Kelder.
Recoveries:
02-10-2022 Egmond aan Zee (Strand), Noord-Holland, NL 5.237,00 N 437,00 E colourring read Aad van der Ent
03-03-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
18-04-2023 Onderdijk (Vooroever), Noord-Holland, NL 5.244,00 N 508,00 E colourring read Leon Kelder
01-11-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
10-11-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
17-11-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
16-12-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
20-02-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read T. Horst & M. Muusse
16-03-2024 Wervershoof (Vooroever), Noord-Holland, NL 5.245,00 N 507,00 E colourring read Jeroen van Assema
24-06-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
21-10-2024 Velsen (Strand Noordpier), Noord-Holland, NL 5.228,00 N 433,00 E colourring read Thijs Horst
15-11-2024 Voorthuizen (Zeumeren), Gelderland, NL 5.210,00 N 535,00 E colourring read Brigitta Unkel
08-04-2025 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst & M. Muusse
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 2022
Bird from De Kreupel, nest C5 on island C. Parent is r-0A.
| Date: | Egg code | Height (mm) | Width (mm) | Comments | Metal NLA | Colour ring | Wing (mm) | Head+ bill (mm) | Bill | Mass (gr) | Tarsus | Gonys | Swab no |
| 14-4-2022 | A-egg | 72.7 | 51.8 | 2 eggs | |||||||||
| B-egg | 74.1 | 52.8 | |||||||||||
| 29-4-2022 | Adult trapped Caspian x Herring | 6214033 | Red 0.A | 441 | 123.5 | 57.5 | 933 | 71.4 | 17.8 | 1064 | |||
| 13-5-2022 | 3 pulli in nest | 5620234 | Red 0.T | 55.0 | 98 | ||||||||
| 5620235 | Red 0.U | 55.1 | 101 | ||||||||||
| 5620236 | Red 0.V | 50.9 | 70 | ||||||||||
below: Herring Gull argenteus (hybrid) 0.V 4CY, July 13 2025, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Herring Gull argenteus (hybrid) 0.V 4CY, April 08 2025, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.
Note yellow orbital ring.
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below: Herring Gull argenteus (hybrid) 0.V 3CY, October 21 2024, Oostvaardersdijk - Almere, the Netherlands. Picture: Thijs Horst.
below: Herring Gull argenteus (hybrid) 0.V 2CY, March 03 2023, Almere - De Vaart, the Netherlands. Picture: Eric Roeland.
Phenotycis of Herring Gull, but may be F2-hybrid offspring of Herring Gull x caspian gull.
