Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Caspian Gull cachinnans R|K 1CY, 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.
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Tibia G-R|K and metal NLA 5.641.901, ringed as pullus Larus cachinnans on May 31 2025 at Lelystad, the Netherlands. Ringed by Roland-Jan Buijs ringing team (Mars Muusse / Thijs Horst / Fred Cottaar).
Mother: adult Caspian Gull g-A|B.
Father: adult Caspian Gull r-7P.
Nest: g-A|B (223). In 2025 g-R|K only fledged chick. Fledging rate for this nest 2025 = 1,0.
Recoveries:
29-06-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
30-06-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
09-07-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
Visits and data nest g-A|B (223-2025).
| 2025 | parent 1 | parent 2 | A_length | A_width | A_volume | B_length | B_width | B_volume | C_length | C_width | C_volume | TOTAL NEST:
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# eggs |
| g-A|B (223) | cach | cach | 80,3 | 50,9 | 75,8 | 50,4 | 72,7 | 48,4 | 3 | ||||
| dam: | dam 2 central
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| location: | 3 mtr north of 17, 3 mtr east of 253. White football.
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| parents: | Male is g-A|B, female is adult Caspian Gull. | ||||||||||||
| ring pulli: | |||||||||||||
| date | darvic | metal | location / nest# | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | |
| 31-05-2025 | g-R|K | 5641901 | g-A|B | PONT | pullus | 413 | |||||||
OBSERVATIONS:
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| 3/16/2025 | nest | g-A|B and several cach present at blocks near nest 223/253
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| 3/20/2025 | nest | g-A|B at nest location 2024
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| 4/12/2025 | nest | g-A|B and unringed partner at nest location 2024
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| 4/21/2025 | eggs | 3x eggs measured
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| 5/8/2025 | adult | both partners present
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| 5/31/2025 | chicks | 1 chick ringed, might be alerting above water where we ringed 4 chicks
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below: Caspian Gull cachinnans R|K 1CY, July 09 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.
below: Caspian Gull cachinnans R|K 1CY, June 30 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.
below: Caspian Gull cachinnans R|K 1CY, June 29 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.
.JPG)
below: Caspian Gull cachinnans R|K 1CY, June 09 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.
below: Caspian Gull cachinnans R|K 1CY, May 31 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.
| date | darvic | metal | nest | species | sexe | age | wing | mass | head+ bill | bill | gonys | barcode | comments |
| 31-5-2025 | G-R|K | .5641901 | g-A|B | PONT | pullus | 413 | Ringed pullus |
