Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Caspian Gull cachinnans F|W 1CY, May & September 2020, Lelystad & Wassenaar, the Netherlands. Picture: Albert de Jong, Mars Muusse & Merijn Loeve.
Black tibia bar ring n[F|W], ringed as pullus Larus cachinnans on May 21 2020 at nest 35 in colony Lelystad, the Netherlands.
ID certain, both parents are Caspian Gull cachinnans.
| datum: | egg no: | width (mm) | length (mm) | volume (cm3): | water test on May 7th: | |
| 07-05-2020 | A | 50,3 | 70,4 | 89,68 | 90 - floating, 7mm above surface | 3 eggs in the nest. |
| 07-05-2020 | B | 50 | 77,8 | 97,93 | 90 - floating, 5mm above surface | |
| 07-05-2020 | C | 50,6 | 74,9 | 96,56 | 90 - floating, 6mm above surface | |
| sum nest: | 284,17 | |||||
| 21-05-2020 | pulli | 1 egg intact, but embryo dead. Two chicks here, ringed n[F|V] & n[F|W]. | ||||
Caspian Gull cachinnans F|W 1CY, September 26 2020, Wassenaar beach, the Netherlands. Picture: Albert de Jong.
All coverts and tertials still juvenile.
Caspian Gull cachinnans F|W 1CY, September 11 2020, Katwijk beach, the Netherlands. Picture: Mars Muusse.
All coverts and tertials still juvenile.
Caspian Gull cachinnans F|W 1CY, May 21 2020, Lelystad, the Netherlands. Picture: Merijn Loeve.
Roland-Jan Buijs & Albert de Jong.
