Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Albert de Jong
Merijn Loeve
Roland-Jan Buijs
Thijs Horst
Leon Kelder
Mars Muusse
Caspian Gull cachinnans F.G 1CY, May 28 & July 09 2021, Lelystad, the Netherlands. Picture: Albert de Jong, Merijn Loeve & Mars Muusse.
Red tibia ring r[F.G], ringed as pullus Larus cachinnans on May 28 2021 at nest 02 in colony Lelystad, the Netherlands.
ID certain in 2021, same breeders as previous season (2020): they are Caspian Gull cachinnans PNED 9CY and unringed adult partner.
Caspian Gull cachinnans F.G 1CY, May 28 2021, Lelystad, the Netherlands.
Caspian Gull cachinnans F.G 1CY, July 09 2021, Lelystad, the Netherlands. Picture: Albert de Jong.
Visits and data.
| date: | |||||||
| 16-04-2021 | y[PNED] present at nest guarding at blocks, nest with 3 eggs. | ||||||
| egg no: | width (mm): | length (mm): | volume (cm3): | water test on April 16th: | |||
| A egg | 52,1 | 77,3 | 105,65 | 35 - tip bottom | |||
| B egg | 52 | 76 | 103,47 | 35 - tip bottom | |||
| C egg | 50,8 | 69,5 | 90,30 | 35 - tip bottom | |||
| sum nest: | 299,42 | ||||||
| 26-04-2021 | PNED present and alarming. Fight with neighbour or partner. | ||||||
| Partner PNED also present. | |||||||
| 06-05-2021 | Picture of partner. | ||||||
| 2 eggs hatching, 1 pullus just emerging. | |||||||
| 15-05-2021 | No visit. | ||||||
| 28-05-2021 | metal | tibia | mass | head + bill | |||
| pull | .5559430 | red-F.F | 908 | 105 | |||
| pull | .5559431 | red-F.G | 673 | 94,8 | |||
| 08-06-2021 | At north side of dam 1: r-F.G and another chick at the blocks (is this maybe r-F.F?). | ||||||
| 26-06-2021 | No visit. | ||||||