Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Caspian Gull cachinnans 8.3 1CY-3CY, June 2023 - March 2025, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.
Tibia ring R-8.3 and metal NLA 5.556.478, ringed as pullus Larus cachinnans on May 11 2023 in nest P:U60 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
29-01-2025 Neder-over-Heembeek (Vuiloverslag), Brussel, BELGIE 5.053,00 N 422,00 E colourring read Michel Janssens
31-01-2025 Almere (Dashorstdijk), Flevoland, NL 5.225,00 N 512,00 E colourring read Thijs Horst
25-03-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
Data for 2023 nest y-P:U60
| 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 | PU60 | 76,6 | 51 | 100,32 | 69,2 | 50,3 | 88,15 | 72,1 | 51,3 | 95,54 | 284,01 | same as 2022 |
| ring pulli: 10-mei | laying A egg: 5-apr | hatch A egg: 3-mei | ||||||||||
| date: | metal: | darvic: | mass: | wing: | head+bill: | |||||||
| pullus | 11-05-2023 | NLA5556478 | r 8.3 | -- | -- | -- | ||||||
| pullus | 11-05-2023 | NLA5556479 | r 8.5 | -- | -- | -- | ||||||
| pullus | 18-05-2023 | 5556495 | G-7|C | 550 | -- | 89,8 | ||||||
| pullus | 27-05-2023 | 5556495 | G-7|C | 955 | -- | -- | ||||||
| dam: | dam 1 blocks | |
| location: | location is PU60-2022. Red spot on block near nest. | |
| breeders: | cach x cach | |
| OBSERVATIONS: | ||
| 09-04-2023 | adult: | female PU60 & adult male cach present. Red spot renewed. |
| nest: | 3 eggs measured. Watertest C-egg: 20 - tip bottom. | |
| 11-05-2023 | pulli: | 2 chicks ringed, is there a 3rd chick? |
| 13-05-2023 | adult: | PU60 & male cach present. |
| 18-05-2023 | pulli: | 1 chick ringed G-7|C, R-85 present. |
| 27-05-2023 | pulli: | 1x control chick G-7|C. |
| 18-06-2023 | pulli: | r-83, r-85, g7|C present, with 2 adults (incl PU60). Fledged: 3 juveniles. |
| 25-06-2023 | pulli: | family complete, 3x chicks 2x parents. Result 2023: 3x fledged juveniles. |
below: Caspian Gull cachinnans 8.3 3CY, March 25 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst & Mars Muusse.
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below: Caspian Gull cachinnans 8.3 1CY, July 08 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans 8.3 1CY, June 25 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans 8.3 1CY, June 18 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.
