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 De Kreupel 2020
nest r-02P4 20
nest y-X804 20
nest D01 20
nest D02 20
nest D03 20
nest L01 20
nest L02 20
nest L03 20
nest M02 20

Nests at De Kreupel 2021
nest r-02P4 20
nest w-201U 21
nest g-XLHD 21
nest r-KA 21
nest r-KB 21
nest r-KC 21
nest r-KD 21
nest r-KE 21
nest r-KF 21
nest r-KH 21
nest r-KJ 21
nest r-KK 21
nest A01 21
nest C03 21
nest C04 21
nest C06 21
nest D01 21
nest D03 21
nest D05 21
nest D06 21
nest D07 21
nest D08 21
nest E01 21
nest H01 21
nest L01 21
nest L02 21
nest L05 21
nest L06 21
nest L07 21
nest M01 21
nest M04 21
nest M06 21
nest Q01 21

 

Caspian Gull cachinnans K.B adult, April 2021 - March 2024, Almere & De Kreupel, the Netherlands. Picture: Leon Kelder, Eric Roeland, Merijn Loeve, Thijs Horst & Mars Muusse.

You can participate in this project too! Please send in your observations of colour ringed birds to: ring@buijsecoconsult.nl

Red tibia R-KB and metal Arnhem 6.211.437, ringed as >4cy male Larus cachinnans on 23-04-2021 at IJsselmeer (De Kreupel), Holland (5247.00 N 513.00 E), by ringer Roland-Jan Buijs.
Coordinator: Leon Kelder.
Ringers: Roland-Jan Buijs, Leon Kelder & Merijn Loeve.

Recoveries:
01-08-2022 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
10-03-2023 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
04-03-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst & M. Muusse
02-07-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
05-07-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder

date: egg no: width (mm): length (mm): volume (cm3):      comments:
09-4-2021 A 53.2 73.6       2 cold eggs. Location is Kreupel - M nest 3
09-4-2021 B 53.2 72.1        
23-4-2021 A 53.4 73.7       3 warm eggs. One parent trapped at nest.
23-4-2021 B 53.3 71.9      
23-4-2021 C 51.6 70.9      
             

below: Caspian Gull cachinnans K.B adult, March 03-04 2024, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.

below: Caspian Gull cachinnans K.B adult, March 10 2023, Almere - De Vaart, the Netherlands. Picture: Eric Roeland.

below: Caspian Gull cachinnans K.B adult, August 02 2022, De Kreupel - H, the Netherlands. Picture: Leon Kelder / camera trap.

below: Caspian Gull cachinnans K.B adult, April 23 2021, De Kreupel - M, the Netherlands. Pictures: Merijn Loeve.

r[K.B] and metal NLA 6.211.437, Caspian Gull cachinnans, or maybe hybrid Herring X Caspian Gull 4+CY male.
Wing: 454
Head + Bill: 128,3
Bill: 48,5
Bill height: 17,1
Kodak grey scale: 6
Weight: -
Moult in primaries: P1-P10 old.