Larus cachinnans in the Netherlands

(last update: August 16, 2020)

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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 FF 1CY, June & September 2020, De Kreupel & IJmuiden, the Netherlands. Picture: Leon Kelder & Fred Cottaar.

Tibia ring P-FF and metal NLA 5.545.484, ringed as pullus Larus cachinnans on June 19 2020 at De Kreupel, Holland (5247.00 N 513.00 E). Ringer Leon Kelder.

Bird hatched in nest K09 in season 2020. Brother / sister of p[FD] & p[FE] & 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:
08-09-2020 IJmuiden (Forteiland), Noord-Holland, NL 5.228,00 N 434,00 E colourring read Fred Cottaar
17-09-2020 Katwijk aan Zee (Strand), Zuid-Holland, NL 5.213,00 N 424,00 E colourring read Annelies Marijnis
07-07-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder

below: Caspian Gull cachinnans FF 1CY, September 08 2020, IJmuiden, the Netherlands. Picture: Fred Cottaar.

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