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 FE 1CY & 5CY, June 2020 & March 2024, colony De Kreupel, the Netherlands. Picture: Leon Kelder, Thijs Horst & Mars Muusse.

Tibia P-FE and metal NLA 5.545.490, ringed as pullus Larus cachinnans on June 19 2020 at IJsselmeer (De Kreupel), Holland (5247.00 N 513.00 E). Ringer: Leon Kelder.
Bird hatched in nest K09 in season 2020.
Sibling of p[FD] & p[FF] & p[FH]. On June 19th, four large juveniles present at this spot, one individual most certainly from another nest (p[FF] maybe?). None of the birds traced back to the parents.

Recoveries:
03-03-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst & M. Muusse
15-04-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
20-06-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
24-06-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder

date:     WING: HEAD + BILL: BILL: WEIGHT: TARSUS:
12-6-2020 pullus NLA 5.545.454 & p[FD] 226 109.9 45.8 957 --
               
19-6-2020 pullus NLA 5.545.454 & p[FD] 290 115.3 968 78.4
19-6-2020 pullus NLA 5.545.490 & p[FE] 294 119.5 1212 78.2
19-6-2020 pullus NLA 5.545.491 & p[FH] 260 109.7 939 69.7

below: Caspian Gull cachinnans FE 5CY, April 13-17 2024, colony De Kreupel, the Netherlands. Picture: Leon Kelder - camera trap.

Pale FE with unringed female cachinnans at nest Q9.

below: Caspian Gull cachinnans FE 5CY, March 03 2024, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.

below: Caspian Gull cachinnans FE 1CY, June 19 2020, colony De Kreupel, the Netherlands. Picture: Leon Kelder.