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

Herring Gull argentatus-type B.0 1CY, May 28 2021, De Kreupel - C, the Netherlands. Picture: Leon Kelder.

Red tibia ring r[B.0], ringed as pullus Larus argenttaus-type on May 28 2021 at nest KJ 21 in colony De Kreupel, the Netherlands.
ID uncertain: red K.J is hybrid type Herring x Caspian Gull. Partner is Herring Gull argentatus, hence r-B.0 likely F2 Herring Gull backcross.