Larus cachinnans in the Netherlands

(last update: August 16, 2020)

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Caspian Gull cachinnans 7.W 1CY-2CY, May 2023 - March 2024, Lelystad & Almere, the Netherlands. Picture: Thijs Horst & Mars Muusse.

Tibia ring R-7W and metal NLA 5.625.194, ringed as pullus Larus cachinnans on May 11 2023 in nest 206 at Lelystad, the Netherlands. Ringed by Roland-Jan Buijs ringing team.

Recoveries:
11-05-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
18-06-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
26-06-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
08-07-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
15-07-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
01-11-2023 IJmuiden (Forteiland), Noord-Holland, NL 5.228,00 N 434,00 E colourring read Fred Cottaar
14-01-2024 Balgoij (Loonse Waard), Gelderland, NL 5.147,00 N 541,00 E colourring read Tim Raats
02-02-2024 Oss (Vuiloverslag), Noord-Brabant, NL 5.147,00 N 532,00 E colourring read Jaap van der Linden
21-02-2024 Oss (Vuiloverslag), Noord-Brabant, NL 5.147,00 N 532,00 E colourring read Tim Raats
30-03-2024 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Harry Kuipers & Thijs Horst
11-07-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
15-07-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
16-07-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
24-07-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder

egg sizes & volume 2023
SPECIES NEST A_length A_width A_volume B_length B_width B_volume C_length C_width C_volume TOTAL NEST: known parents?
cach x cach 206 71,3 50,5 91,55 67,3 51,3 89,18 67 48,8 80,34 261,07 one is same as 2022
ring pulli: May 10 laying A egg: April 05 hatch A egg: May 03
     
catch: date: metal: darvic: mass: wing: head+bill: bill: gonys: greytone:
Pullus 11-5-2023 NLA5625194 r 7.W
Pullus 11-5-2023 NLA5625195 r 7.X
Pullus 18-6-2023 r-7X
Pullus 18-6-2023 r-7W
   
206 (was X56A)
dam: dam 2 west
location: 8 mtr W of blue sign VHF20, south side, on blocks
breeders: cach x cach
OBSERVATIONS:
26-4-2023 nest: 3 eggs.
27-4-2023 y-X56A is NOT the parent (27/4 confirmed).
27-4-2023 3 eggs measured. Watertest C-egg: 20 - tip bottom
11-5-2023 pull: 2 kuikens geringd, 3e kuiken?
11-5-2023 r-7X: baars en voorn uitgebraakt
18-5-2023 nest: nest empty, no chicks found
27-mei nest: nest empty, no chicks found
18-6-2023 pull: r-7X & r-7W present, 2 birds fledged.
25-6-2023 pull: r-7X and r-7W present, 2 birds fledged.

below: Caspian Gull cachinnans 7.W 2CY, March 30 2024, Almere, the Netherlands. Picture: Thijs Horst.

below: Caspian Gull cachinnans 7.W 1CY, July 15 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.

below: Caspian Gull cachinnans 7.W 1CY, July 08 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.

below: Caspian Gull cachinnans 7.W 1CY, June 18 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.

below: with r-7.X (in background).

below: Caspian Gull cachinnans 7.W 1CY, June 18 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.

below: Caspian Gull cachinnans 7.W 1CY, May 11 2023, Lelystad colony, the Netherlands. Picture: Albert de Jong.

Ringed in nest 206, together with r-7.X.