Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Caspian Gull cachinnans M|6 1CY, 2025, the Netherlands. Picture: Thijs Horst & Mars Muusse.
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Tibia G-M|6 and metal NLA 5.641.007, ringed as pullus Larus cachinnans on April 28 2025 at Lelystad, the Netherlands. Ringed by Roland-Jan Buijs ringing team (Mars Muusse / Thijs Horst / Fred Cottaar).
Mother: adult Caspian Gull.
Father: adult Caspian Gull.
Nest: 248-2025. In 2025, g-M|6 fledged as only chick. Fledging rate for this nest 2025 = 1,0.
Recoveries:
08-05-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
31-05-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
09-06-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
13-06-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
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
11-07-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
06-09-2025 Lelystad (Oostvaardersplassen), Flevoland, NL 5.227,00 N 524,00 E colourring read Maarten Hotting
Visits and data 248-2025.
| 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 | A-egg | hatch | |
| 248 | cach | cach | 70,2 | 52,1 | 68 | 51,8 | 2 | 3/28/2025 | 4/26/2025 | |||||||
| dam: | dam 2 west
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| location: | 248 Yellow hemlet nest, same as 248-2024, between lighthouse and blue sign, Visible from N-side, Yellow helmet next to nest,
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| ouders: | same as 2024?
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| ring pulli: | 1-May | |||||||||||||||
| date | darvic | metal | location / nest# | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | greyscale | |||
| 28-04-2025 | g-M|6 | 5641007 | 248/gele helm | PONT | PULLUS | 96 | ||||||||||
| 13-05-2025 | g-M|6 | 5641007 | 248/gele helm | PONT | PULLUS | 672 | ||||||||||
| 31-05-2025 | g-M|6 | 5641007 | 248/gele helm | PONT | PULLUS | 301 | 930 | 111,7 | 41,7 | 13,5 | ||||||
OBSERVATIONS:
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| 21-04-2025 | eggs | 2x eggs measured, Will not have a 3rd egg.
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| 28-04-2025 | pullus | 1x pullus ring, other 1 not found.
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| 08-05-2025 | adult | both partners present.
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| 13-05-2025 | chick | g-M|6 present, 672gr.
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| food | fish. | |||||||||||||||
| 31-05-2025 | chick | g-M|6 caught on water, measured.
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below: Caspian Gull cachinnans M|6 1CY, August 20 2025, Oostvaardersdijk - Almere, the Netherlands. Picture: Thijs Horst.
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below: Caspian Gull cachinnans M|6 1CY, July 11 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.
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below: Caspian Gull cachinnans M|6 1CY, June 30 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.
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below: Caspian Gull cachinnans M|6 1CY, June 29 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.
below: Caspian Gull cachinnans M|6 1CY, June 09 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.
below: Caspian Gull cachinnans M|6 1CY, May 13 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst & Mars Muusse.
| date | darvic | metal | nest | species | sexe | age | wing | mass | head+ bill | bill | gonys | barcode | comments |
| 28-4-2025 | G-M|6 | .5641007 | 248/gele helm | PONT | PULLUS | 96 | Ringed pullus |
