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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Site characteristics
Breeding biology
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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 0.S 1CY-2CY, July 2022 - January 2023, the Netherlands & England. Picture: Jeroen van Assema & Gerard Lax.

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

Tibia ring R-0S and metal ring NLA Arnhem 5.620.233, ringed as pullus Larus cachinnans on May 13 2022 at IJsselmeer (De Kreupel), Holland (5247.00 513.00 E) - ringer Leon Kelder.

Recoveries:
01-07-2022 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Jeroen van Assema
19-01-2023 Barnsley (RSPB Old Moore), South Yorkshire, ENGELAND 5.330,00 N 121,00 W colourring read Gerard Lax
22-01-2023 Wakefield (Wintersett Reservoir), West Yorkshire, ENGELAND 5.338,00 N 125,00 W colourring read Steve Denny
23-01-2023 Barnsley (RSPB Old Moore), South Yorkshire, ENGELAND 5.330,00 N 121,00 W colourring read Gerard Lax & Steve Denny

Bird from De Kreupel, nest C4 on island C. Data for this nest:

Date: Egg code Height (mm)  Width (mm) Comments Metal NLA Colour ring Wing (mm) Head+ bill (mm) Bill Mass (gr) Tarsus Swab no
14-4-2022 A-egg 76.1 51.7 3 eggs
B-egg 75.7 52.6
C-egg 76.6 52.7
13-5-2022 3 pulli in nest, ringed today 5620231 Red 0.P 46 70.7 279 1099
5620232 Red 0.R 50.5 70.0 277 1100
5620233 Red 0.S 50 73.3 307 1101
17-6-2022 1 fledged chick r-0.R, together with parent r- K.K

below: Caspian Gull cachinnans 0.S 2CY, January 23 2023, Barnsley, England. Picture: Gerard Lax.

below: Caspian Gull cachinnans 0.S 1CY, July 01 2022, De Kreupel, the Netherlands. Picture: Jeroen van Assema.