Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Caspian Gull cachinnans 7.= 1CY, May 11 2023, Lelystad colony, the Netherlands. Picture: Albert de Jong.
Tibia ring R-7.= and metal NLA 5.556.459, ringed as pullus Larus cachinnans on May 11 2023 in nest 14 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 cach | 14-2023 | 73,9 | 50,7 | 95,64 | 75,8 | 51 | 99,27 | 68 | 50,2 | 86,28 | 281,19 | same as 2022 |
| ring pulli: 14-mei | laying A egg: 9-apr | hatch A egg: 7-mei | ||||||||||
| catch: | date: | metal: | darvic: | |||||||||
| Pullus | 11-05-2023 | NLA5556459 | r-7.= | |||||||||
| Pullus | 11-05-2023 | NLA5556460 | r-8.U | |||||||||
| Pullus | 11-05-2023 | NLA5556461 | r-8.X | |||||||||
| 14-2023 | |||||||
| dam: | dam 2 central | ||||||
| location: | "14" code strayed on stone. Is nest 14-2020/2022 | ||||||
| breeders: | cach x cach | ||||||
| OBSERVATIONS: | |||||||
| 09-04-2023 | nest: | 1 egg measured. No watertest. | |||||
| 26-04-2023 | nest: | 3 eggs measured, and water test | A: floating - 1 mm | ||||
| adult: | alarming parent | B: floating - halfway | |||||
| 27-04-2023 | adult: | Male cach at nest. Female guarding | C: floating - 0 mm | ||||
| 11-05-2023 | pulli: | 3 chicks ringed | |||||
| 13-05-2023 | adult: | male dark eye, no black P4. Female pale eye, black on P4. | |||||
| 27-05-2023 | nest: | no alarming adults, no chicks found. Nest failed apparently. | |||||
below: Caspian Gull cachinnans 7.= 1CY, May 11 2023, Lelystad colony, the Netherlands. Picture: Albert de Jong.
