Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Caspian Gull cachinnans 1CY, June 18 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.
This is the unringed sibling of g[7|N] and g[7|P], from nest PNED-2023 at Lelystad. In 2023: 3 fledged juveniles from nest PNED.
| 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 | PNED | 73,4 | 52,1 | 100,32 | 73,1 | 50 | 92,01 | 68 | 49,8 | 84,91 | 277,24 | same as 2022 |
| ring pulli: 9-mei | laying A egg: 6-apr | hatch A egg: 4-mei | ||||||||||
| catch: | date: | metal: | darvic: | mass: | wing: | head+bill: | ||||||
| Pullus | 18-05-2023 | 5556405 | G-7|N | 635 | -- | 95 | ||||||
| Pullus | 18-05-2023 | 5556406 | G-7|P | 616 | -- | 92,3 | ||||||
| Pullus | 27-05-2023 | 5556405 | G-7|N | 1030 | -- | -- | ||||||
| PNED | nest 136-2022 | ||||
| dam: | dam 1 east | ||||
| location: | Visible from N. | ||||
| breeders: | cach x cach | ||||
| OBSERVATIONS: | |||||
| 09-04-2023 | adult: | male unringed cach & female cach yPNED present at location. So search for nest today. | |||
| 26-04-2023 | adult: | male unringed cach & female cach yPNED present at location. | |||
| nest: | code 136, birds have moved to this location. "136" sprayed on block + blue foam. | ||||
| eggs: | 3x eggs, measured. | A | 1 mm - float | ||
| B | 1 mm - float | ||||
| C | 1 mm - float | ||||
| 13-05-2023 | adult: | cach male. | |||
| 18-05-2023 | pulli: | 2 chicks ringed, 3rd not found. | |||
| 27-05-2023 | pulli: | 1 chick measured. | |||
| 18-06-2023 | pulli: | g-7|P & g-7|N present + unringed sibling. 3x fledged from PNED. | |||
| adult: | y-PNED present. Unringed male guarding g-7|P. | ||||
| 25-06-2023 | pulli: | g-7|N alone, g-7|P with unringed sibling. | |||
