Coordinator:
Albert de Jong
Merijn Loeve
Roland-Jan Buijs
Thijs Horst
Leon Kelder
Mars Muusse
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Caspian Gull cachinnans F9 1CY-6CY, 2020-2025,
the Netherlands & France. Picture: Leon Kelder, Eric Roeland, Sophie Damian-Picollet, Jurgen Rotteveel, Thijs Horst & Mars Muusse..
P-F9 and metal Arnhem 5.545.429, ringed as pullus Larus cachinnans on May 21 2020 at IJsselmeer (De Kreupel), Holland (NL 5247.00 N 513.00 E), by ringer Leon Kelder.
Bird hatched in nest K07 in season 2020.
Recoveries:
03-10-2021 Almere (De Blocq van Kuffeler), Flevoland, NL 5.225,00 N 513,00 E colourring read Eric Roeland
29-10-2021 Outreau (Bassin de la Liane), Pas-de-Calais, FRANKRIJK 5.042,00 N 136,00 E colourring read Jean Michel Sauvage
15-01-2022 Mimizan (Courant of Mimizan), Landes, FRANKRIJK 4.412,00 N 117,00 W colourring read Sophie Damian-Picollet
28-10-2022 IJmuiden (Strand Zuidpier), Noord-Holland, NL 5.228,00 N 434,00 E colourring read Jurgen Rotteveel
16-06-2023 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
10-08-2023 Andijk (Jachthaven), Noord-Holland, NL 5.244,00 N 510,00 E colourring read Thijs Horst
19-07-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst & M. Muusse
30-07-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read J. van Assema & T. Horst
07-08-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
07-09-2024 Andijk (Jachthaven), Noord-Holland, NL 5.244,00 N 510,00 E colourring read J. van Assema & T. Horst
Data for 2020:
date: |
egg no: |
width (mm): |
length (mm): |
volume (cm3): |
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Comments: |
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21-5-2020 |
C |
52,3 |
67,1 |
118,56 |
Egg not furtile. |
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2 pulli ringed. One egg present. |
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WING: |
HEAD + BILL: |
BILL: |
WEIGHT: |
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21-5-2020 |
pullus |
NLA 5.545.429 & p[F9] |
-- |
71.1 |
27.7 |
252 |
Pullus ringed, F9. |
21-5-2020 |
|
NLA 5.545.431 |
-- |
67.1 |
25.3 |
200 |
Pullus ringed, only metal, no colour ring. |
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below: Caspian Gull cachinnans F9 6CY, July 13 2025, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.
.JPG)
.JPG)

below: Caspian Gull cachinnans F9 5CY, September 07 2024, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.


below: Caspian Gull cachinnans F9 5CY, July 30 2024, colony De Kreupel, the Netherlands. Picture: Thijs Horst.

below: Caspian Gull cachinnans F9 5CY, July 19 2024, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.

below: Caspian Gull cachinnans F9 3CY, October 28 2022, IJmuiden, the Netherlands. Picture: Jurgen Rotteveel.

below: Caspian Gull cachinnans F9 3CY, January 15 2022, Mimizan, France. Picture: Sophie Damian-Picollet.


below: Caspian Gull cachinnans F9 2CY, October 03 2021, Almere, the Netherlands. Picture: Eric Roeland.
Faint mirror on 2nd gen P10.


below: Caspian Gull cachinnans F9 1CY, May 21 2020, De Kreupel,
the Netherlands. Picture: Leon Kelder.

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