Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Caspian Gull cachinnans hybrid C:8 1CY, July 2025, colony De Kreupel, the Netherlands.
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Tibia Y-C:8 and metal 5.633.744, ringed as pullus F1-hybrid Larus argentatus x L. cachinnans on May 16 2025 at IJsselmeer (De Kreupel), Noord-Holland, by ringer Leon Kelder.
Recoveries:
13-07-2025 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst, M. Muusse & N. Colpaert
23-07-2025 Mablethorpe (Strand), Lincolnshire, ENGELAND 5.320,00 N 15,00 E colourring read Dean Nicholson
Data for nest D7 - 2025.
Adults for nest D7 are Herring Gull and Caspian Gull.
| Metal ring | Colour ring | Date | Species | Age | Clutch size | Location | Nest code | Ringer | Head+Bill | Mass | Wing | Parents |
| NLA 5633744 | y-C:8 | 16-5-2025 | Caspian Gull | pullus | 3 eggs | the Netherlands, De Kreupel - eiland D. | D7 | Leon Kelder | 60,8 | 133,0 | ||
| NLA 5633745 | y-C:9 | 16-5-2025 | Caspian Gull | pullus | 3 eggs | the Netherlands, De Kreupel - eiland D. | D7 | Leon Kelder | 51,1 | 61,0 | ||
| NLA 5633746 | y-C:A | 16-5-2025 | Caspian Gull | pullus | 3 eggs | the Netherlands, De Kreupel - eiland D. | D7 | Leon Kelder | 55,7 | 99,0 |
below: Caspian Gull cachinnans hybrid C:8 1CY, July 23 2025, Mablethorpe - Lincolnshire, England. Picture: Dean Nicholson.
below: Caspian Gull cachinnans hybrid C:8 1CY, July 13 2025, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.
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below: Caspian Gull cachinnans x Herring Gull argenteus nest D7, May 2025, colony De Kreupel, the Netherlands. Picture: Leon Kelder - camera trap.
Adults for nest D7 are Herring Gull and Caspian Gull.
