Larus cachinnans in the Netherlands

(last update: August 16, 2020)

Coordinators:
Albert de Jong
Leon Kelder
Roland-Jan Buijs
Thijs Horst
Merijn Loeve
Mars Muusse

Home

Project Info
International trend
National trend
Site characteristics
Breeding biology
Fecundity
Food resources
Nonbreeding season
Breeding species
Hybrid scores
Ring codes
Future

Caspian Gull cachinnans W|E 1CY, July 2025, colony De Kreupel, the Netherlands.

You can participate in this project too! Please send in your observations of colour ringed birds to: ring@buijsecoconsult.nl

Tibia G-W|E and metal Arnhem NLA 5.639.138, ringed as pullus Larus cachinnans on May 09 2025 at IJsselmeer (De Kreupel), Holland (5247.00 N 513.00 E), by ringer Leon Kelder.

Recoveries:
22-05-2025 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E captured by ringer Leon Kelder
04-07-2025 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Peter van Horssen
13-07-2025 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst, M. Muusse & N. Colpaert

Data for nest M4 - 2025.

Metal ring Colour ring Date Species Age Clutch size Location Nest code Ringer Head+Bill Mass Wing Parents
NLA 5639138 g-W|E 09-5-2025 Caspian Gull pullus 2 eggs the Netherlands, De Kreupel - eiland M. M4 Leon Kelder 55,5 93,0
NLA 5639138 g-W|E 22-5-2025 Caspian Gull pullus -- the Netherlands, De Kreupel - eiland M. M4 Leon Kelder 79,2 355,0 67,5
NLA 5639139 g-W|F 09-5-2025 Caspian Gull pullus 2 eggs the Netherlands, De Kreupel - eiland M. M4 Leon Kelder 63,6 173,0

below: Caspian Gull cachinnans W|E 1CY, July 13 2025, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.