Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Caspian Gull cachinnans F|+ 1CY-6CY, May 2020 - April 2025, the Netherlands. Picture: Juriaan Rung, Merijn Loeve, Eric Roeland, Thijs Horst & Mars Muusse.
Tibia N-F|+ and metal Arnhem 5552921, ringed as pullus Larus cachinnans on May 21 2020 at nest 014 in colony Lelystad (Bataviahaven), Flevoland (5230.00 N 525.00 E), by ringer Roland-Jan Buijs.v
ID certain, both parents are Caspian Gull cachinnans.
Recovery:
26-09-2020 Lelystad (Oostvaardersdijk), Flevoland, NL 5.228,00 N 519,00 E colourring read Juriaan Rung
30-09-2020 Lelystad (Oostvaardersdijk), Flevoland, NL 5.228,00 N 519,00 E colourring read Eric Roeland
14-11-2020 Lelystad (Oostvaardersdijk), Flevoland, NL 5.228,00 N 519,00 E colourring read Eric Roeland
16-12-2020 Lelystad (Oostvaardersdijk), Flevoland, NL 5.228,00 N 519,00 E colourring read Eric Roeland
01-02-2021 Almere (De Vaart), Flevoland, NL 5.224,00 N 514,00 E colourring read Eric Roeland
19-07-2021 Lelystad (Oostvaardersdijk), Flevoland, NL 5.228,00 N 519,00 E colourring read Eric Roeland
04-04-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
09-04-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
27-04-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
30-04-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
13-05-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
26-03-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
31-03-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
08-04-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
21-04-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
29-04-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
30-04-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
05-05-2024 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
20-03-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
04-04-2025 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read T. Horst & M. Muusse
Visits and data 2020 for nest 14
| datum: | egg no: | width (mm) | length (mm) | volume (cm3): | water test on April 27th: | |
| 15-04-2020 | A | 50,5 | 76,9 | 98,74 | 35 - tip on bottom | 3 eggs in nest. |
| 15-04-2020 | B | 50,4 | 77,2 | 98,74 | 25 - tip on bottom | |
| 15-04-2020 | C | 50,4 | 71,8 | 91,83 | 15 - tip on bottom | |
| sum nest: | 289,31 | |||||
| 27-4-2020 | Certainty about parents, cachinnans. | |||||
| 21-05-2020 | pullus | Nest empty, with fish. 2 chicks ringed. n[F|=]. | ||||
| 21-05-2020 | pullus | Nest empty, with fish. 2 chicks ringed. n[F|+]. | ||||
| 02-06-2020 | pulli | n[F|=] together with large juvenile, so nest with 3 juveniles fledged? | ||||
Visits and data 2024 for nest n-F|+
| NEST code | parent 1 | parent 2 | A_length | A_width | A_volume | B_length | B_width | B_volume | C_length | C_width | C_volume | TOTAL NEST: | |
| n-F|+ 2024 | cach | cach | 74,6 | 48,6 | 88,72 | 72,1 | 50 | 90,76 | 70,7 | 47 | 78,63 | 258,11 | |
| # eggs | A-egg | hatch | # ringed chicks | # all chicks | # fledged chicks | comments | |||||||
| 3 | 16-4-2024 | 14-5-2024 | |||||||||||
| dam: | dam 1 south | ||||||||||||
| location: | dam 1 south, near cluster nest 60, but 5 mtr S, at Blackberry edge. | ||||||||||||
| parents? | n-F|+-2023 was at dam 2. Now new breeder at dam 1. | ||||||||||||
| ring pulli: | 18-May | ||||||||||||
| date | darvic | metal | location / nest# | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | greyscale | 30-4-2024 | n-F|+ | .5552921 | Dam 1 | PONT | M | 5CY | 464 | 1180 | 135 | 60,3 | 71 | 19,6 | 5 |
| OBSERVATIONS: | |||||||||||||
| 12-4-2024 | eggs: | no nest found. | |||||||||||
| 21-4-2024 | eggs: | 3 eggs, measured. | |||||||||||
| nest: | cluster again: 60, 69, PAM0, n-F|+, and 2 Herrings to follow soon. | ||||||||||||
| 30-4-2024 | adults: | trapped n-F|+. | |||||||||||
below: Caspian Gull cachinnans F|+ 6CY, April 12 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst.
below: Caspian Gull cachinnans F|+ 6CY, April 04 2025, colony Lelystad, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans F|+ 5CY, March 31 2024, Lelystad, the Netherlands. Picture: Thijs Horst & Mars Muusse.
| date | darvic | metal | location / nest# | species | sexe | age | wing | mass | head+ bill | bill | tarsus | gonys | greyscale |
| 30-4-2024 | n-F|+ | .5552921 | Dam 1 | PONT | M | 5CY | 464 | 1180 | 135 | 60,3 | 71 | 19,6 | 5 |
below: Caspian Gull cachinnans F|+ 5CY, March 31 2024, Lelystad, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans F|+ 5CY, March 26 2024, Lelystad, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans F|+ 4CY, April 29 2023, Lelystad, the Netherlands. Picture: Thijs Horst & Mars Muusse.
Breeding in Lelystad colony this season.
below: Caspian Gull cachinnans F|+ 4CY, April 09 2023, Lelystad, the Netherlands. Picture: Thijs Horst & Mars Muusse.
Breeding in Lelystad colony in 2023.
below: Caspian Gull cachinnans F|+ 4CY, April 04 2023, Lelystad, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans F|+ 2CY, July 19 2021, Almere, the Netherlands. Picture: Eric Roeland.
below: Caspian Gull cachinnans F|+ 2CY, February 01 2021, Almere, the Netherlands. Picture: Eric Roeland.
below: Caspian Gull cachinnans F|+ 1CY, September 30 2020, Almere, the Netherlands. Picture: Eric Roeland.
below: Caspian Gull cachinnans F|+ 1CY, September 26 2020, Almere, the Netherlands. Picture: Juriaan Rung.
below: Caspian Gull cachinnans F|+ 1CY, May 21 2020, Lelystad, the Netherlands. Picture: Merijn Loeve.
