Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Caspian Gull cachinnans hybrid A:S 1CY, 2025, the Netherlands. Picture: Bob Woets.
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Tibia Y-A:S and metal NLA 5.632.638, ringed as pullus Larus cachinnans hybrid on May 16 2025 at IJsselmeer (De Kreupel), Holland, NL 5247.00 N 513.00 E, by ringer Leon Kelder.
Recoveries:
29-11-2025 Wieringermeer (Dijkgatsweide), Noord-Holland, NL 5.254,05 N 503,58 E colourring read Bob Woets
Data for nest P7 - 2025.
| Metal ring | Colour ring | Date | Species | Age | Clutch size | Location | Nest code | Ringer | Head+Bill | Mass | Wing | Parents |
| NLA 5632638 | y-A:S | 16-5-2025 | Caspian Gull | pullus | 2 eggs | the Netherlands, De Kreupel - eiland P. | P7 | Leon Kelder | 58,4 | 138,0 | ||
| NLA 5632639 | y-A:T | 16-5-2025 | Caspian Gull | pullus | 2 eggs | the Netherlands, De Kreupel - eiland P. | P7 | Leon Kelder | 65,0 | 194,0 | ||
| NLA 5632639 | y-A:T | 30-5-2025 | Caspian Gull | pullus | 00 | the Netherlands, De Kreupel - eiland O. | P7 | Leon Kelder | 93,9 | 681,0 | 149,5 |
below: Caspian Gull cachinnans hybrid A:S 1CY, November 29 2025, Dijkgatsweide, the Netherlands. Picture: Bob Woets.
Obvious Herring Gull influences.
