Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Caspian Gull cachinnans 7|T 1CY-2CY, May 2023 - July 2024, the Netherlands. Picture: Thijs Horst & Mars Muusse.
Tibia ring G-7|T and metal NLA 5.556.409, ringed as pullus Larus cachinnans on May 18 2023 in nest 111 at Lelystad, the Netherlands. Ringed by Roland-Jan Buijs ringing team.
Recoveries:
18-05-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
27-05-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
18-06-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
18-07-2023 Lelystad (Bataviahaven), Flevoland, NL 5.230,00 N 525,00 E colourring read Thijs Horst
16-07-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read Leon Kelder
28-07-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst & M. Muusse
05-08-2024 IJsselmeer (De Kreupel), Noord-Holland, NL 5.247,00 N 513,00 E colourring read T. Horst, M. Muusse & T. Muusse
Data for 2023:
| 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 | 111-2023 | 70,7 | 51,5 | 94,41 | 70,5 | 52,6 | 98,21 | 69,7 | 50,1 | 88,09 | 280,71 | same as 2022 |
| ring pulli: May 15. | laying A egg: April 12. | hatch A egg: May 10. | ||||||||||
| catch: | date: | metal: | darvic: | mass: | wing: | head+bill: | ||||||
| Pullus | 18-5-2023 | 5.556.409 | g-7|T | 77 | 52,5 | |||||||
| Pullus | 27-5-2023 | 5.556.409 | g-7|T | 326 | ||||||||
| Pullus | 27-5-2023 | 5.625.266 | g-8|V | 253 | ||||||||
| Pullus | 27-5-2023 | 5.625.269 | g-8|X | 326 | ||||||||
| Pullus | 18-6-2023 | 5.625.269 | g-8|X | fledged | ||||||||
| Pullus | 18-6-2023 | 5.625.266 | g-8|V | 810 | 262 | 109,1 | ||||||
| Pullus | 18-6-2023 | 5.556.409 | g-7|T | 809 | 264 | 117,1 | ||||||
| Pullus | 25-6-2023 | 5.625.269 | g-8|X | 938 | 290 | 117,2 | ||||||
| 111-2023 | |||||||
| dam: | dam 1 east | ||||||
| location: | Top of dam. On S-side: red/white traffic sign, nest 111 is just west of it. Same nest as 111-2022 | ||||||
| breeders: | cach x cach | ||||||
| OBSERVATIONS: | |||||||
| 09-04-2023 | adult: | Unringed cach present at location. So search for nest today. | |||||
| 26-04-2023 | adult: | Unringed cach present at location. | |||||
| nest: | Blue jerrycan, old red spot visible. Code 111 sprayed on block N. 10 m W of 112. LBBG 6 m N of 111 | ||||||
| eggs: | 3x egg, measured. | A | 60 - tip bottom | ||||
| B | 60 - tip bottom | ||||||
| C | 40 - tip bottom | ||||||
| 11-05-2023 | eggs: | 3 eggs | |||||
| 18-05-2023 | pulli | 1 chick ringed, 1 chick just hatched (still wet), 1 egg | |||||
| 27-05-2023 | pulli | 3x chicks measured & ringed. | |||||
| 18-06-2023 | pulli | 3x chicks fledged: g-7|T, g-8|V, g-8|X. | |||||
| 25-06-2023 | pulli | g-8|X and g-8|V present | |||||
below: Caspian Gull cachinnans 7|T 2CY, July 28 2024, colony De Kreupel, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans 7|T 1CY, July 18 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans 7|T 1CY, June 18 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans 7|T 1CY, May 27 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans 7|T 1CY, May 18 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst.
