Larus cachinnans in the Netherlands

(last update: August 16, 2020)
Coordinator:
Albert de Jong
Merijn Loeve
Roland-Jan Buijs
Thijs Horst
Leon Kelder
Mars Muusse

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Nests at Lelystad 2022
nest y-PNED
nest y-PHSV / r-CG
nest y-P:U60
nest y-X56A
nest y-X71A
nest y-X540
nest y-XCHP
nest w-327:U
nest n-F|N
nest r-6A
nest r-6B
nest r-6C
nest r-CS
nest r-FC
nest w-8Z
nest zy-MT
nest 003
nest 011
nest 012
nest 014
nest 015
nest 017
nest 017B
nest 018
nest 019
nest 021
nest 026
nest 034
nest 035
nest 038
nest 040
nest 044
nest 046
nest 048
nest 053
nest 055
nest 058
nest 060
nest 061Z
nest 062
nest 063
nest 107Z
nest 109
nest 111
nest 112
nest 113
nest 117Z
nest 118Z
nest 123Z
nest 124Z
nest 125Z
nest 126Z
nest 127Z
nest 128Z
nest 129Z
nest 131Z
nest 132 YLG
nest 133
nest 134
nest 135
nest 136
nest 137
nest 138
nest 139
nest 143Z
nest 203
nest 204
nest 207
nest 222Z
nest 227
nest 228Z
nest 229
nest 230Z
nest 231
nest 240Z
nest 244
nest 245Z

Yellow-legged Gull michahellis hybrid 7.K 1CY-3CY, May 2022 - March 2024, Lelystad & Almere, the Netherlands. Picture: Mars Muusse, Thijs Horst & Eric Roeland.

Red tibia ring r[7.K] and metal NLA 5.625.189, ringed as pullus Larus michahellis hybrid at nest 132 on May 30 2022 in colony Lelystad, the Netherlands. Ringer: Roland-Jan Buijs ringing team.

Recoveries:
26-02-2023 Neder-over-Heembeek (Budabrug), Brussel, BELGIE 5.054,00 N 424,00 E colourring read Michel Janssens
06-06-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst
08-06-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Mark Zevenbergen
12-08-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
13-08-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
15-02-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Thijs Horst
20-02-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read T. Horst & M. Muusse
30-03-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Harry Kuipers & Thijs Horst
31-03-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse

ID uncertain, one parent is Yellow-legged Gull michahellis, other parent most likely Herring Gull argentatus. Might even be Herring Gull g[97] again.

27-Apr-22 3 eggs A egg 69,5 50,9 tip bottom - 20 gr
B egg 68,7 49,8 tip bottom - 20 gr
C egg 64,1 48,7 horizontal
17-May-22 3 eggs
metal darvic mass wing H+B Bill
30-May-22 pullus 5625189 r-7.K 280 46 68 25,2
adult YLG between many LBBG. YLG was standing right next to this chick.
21-Jun-22 michahellis present. But also former partner g-97! (2020, 2021)

below: Yellow-legged Gull michahellis hybrid 7.K 3CY, March 30 2024, Almere, the Netherlands. Picture: Eric Roeland.

below: Yellow-legged Gull michahellis hybrid 7.K 3CY, February 15 2024, Almere, the Netherlands. Picture: Thijs Horst.

below: Yellow-legged Gull michahellis hybrid 7.K 2CY, June 06 2023, Almere, the Netherlands. Picture: Mars Muusse.

below: Yellow-legged Gull michahellis hybrid 7.K 1CY, July 12 2022, Lelystad, the Netherlands. Picture: Thijs Horst & Mars Muusse.

below: Yellow-legged Gull michahellis hybrid 7.K 1CY, May 30 2022, Lelystad, the Netherlands. Picture: Mars Muusse.

r[7.K] michahellis hybrid from nest 132. Picture: May 30th, 2022.
Ringed May 30th. No observations since, but several at this location. No confirmation on 2 other eggs.