Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Caspian Gull cachinnans NLA 5.556.413 1CY, May 18 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst.
Metal NLA 5.556.413, ringed as pullus Larus cachinnans on May 18 2023 in nest 262 at Lelystad, the Netherlands. Ringed by Roland-Jan Buijs ringing team.
| egg sizes & volume 2023 | ||||||||||||
| SPECIES | NEST | A_length | A_width | A_volume | B_length | B_width | B_volume | C_length | C_width | C_volume | TOTAL NEST: | known parents? |
| cach x ? | 262-2023 | 67,3 | 48,1 | 78,40 | 67,6 | 47,3 | 76,15 | 64,9 | 48 | 75,29 | 229,84 | NEW NEST |
| ring pulli: May 25 | laying A egg: April 20 | hatch A egg: May 18 | ||||||||||
| catch: | date: | metal: | darvic: | mass: | wing: | head+bill: | ||||||
| Pullus | 18-05-2023 | 5.556.412 | 64 | 48,9 | ||||||||
| Pullus | 18-05-2023 | 5.556.413 | 52 | 47 | ||||||||
| 262-2023 | was approx nest 18-2021 | |||||
| dam: | dam 2 central | |||||
| location: | old location of 18, but slightly more north. 10 mtr W of 14, on N side. Code sprayed. | |||||
| breeders: | cach x ? | |||||
| OBSERVATIONS: | ||||||
| 30-04-2023 | nest: | 3 eggs. Measured & water test: | A | 90 - tip bottom | ||
| adult: | 2 adults present. | B | 70 - tip bottom | |||
| C | 80 - tip bottom | |||||
| 11-05-2023 | eggs | 3x | ||||
| 18-05-2023 | pulli: | 2 chicks ringed, 1 egg hatching. Metal only, too small | ||||
| 27-05-2023 | pulli: | 1x dead unringed chick in nest. | ||||
| 18-05-2023 | pulli: | saw 2 juvenile birds with metal only during the day around this location. Could be the 2 fledged chicks, or the same bird twice. | ||||
below: Caspian Gull cachinnans NLA 5.556.413 1CY, May 18 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst.
