Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Caspian Gull cachinnans 8|Z 1CY, June - October 2023, the Netherlands. Picture: Hans van Muiswinkel, Nel Bekema, Thijs Horst & Mars Muusse.
Tibia ring G-8|Z and metal NLA 5.625.270, ringed as pullus Larus cachinnans on May 27 2023 in nest 112 at Lelystad, the Netherlands. Ringed by Merijn Loeve / Roland-Jan Buijs ringing team.
Recoveries:
09-08-2023 Bunschoten-Spakenburg (Visverwerker), Utrecht, NL 5.215,00 N 523,00 E colourring read Hans van Muiswinkel
15-09-2023 Oss (Vuiloverslag), Noord-Brabant, NL 5.147,00 N 532,00 E colourring read Jaap van der Linden
20-09-2023 Oss (Vuiloverslag), Noord-Brabant, NL 5.147,00 N 532,00 E colourring read Tim Raats
10-10-2023 Bunschoten (Strand), Utrecht, NL 5.215,00 N 522,00 E colourring read Nel Bekema
10-10-2023 Bunschoten-Spakenburg (Visverwerker), Utrecht, NL 5.215,00 N 523,00 E colourring read Hans van Muiswinkel
13-10-2023 Bunschoten-Spakenburg (Visverwerker), Utrecht, NL 5.215,00 N 523,00 E colourring read Hans van Muiswinkel
31-10-2023 Bunschoten-Spakenburg (Visverwerker), Utrecht, NL 5.215,00 N 523,00 E colourring read Hans van Muiswinkel
| 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 | 112-2023 | 74,6 | 51,7 | 100,40 | 74,2 | 51 | 97,17 | 71,2 | 50,2 | 90,34 | 287,91 | same as 2022 | |
| ring pulli: May 09. | laying A egg: April 06. | hatch A egg: May 04. | |||||||||||
| catch: | date: | metal: | darvic: | mass: | wing: | head+bill: | |||||||
| Pullus | 18-5-2023 | 5.556.407 | G-7|R | 123 | 59,6 | ||||||||
| Pullus | 18-5-2023 | 5.556.408 | G-7|S | 84 | 53 | ||||||||
| Pullus | 27-5-2023 | 5.556.407 | g-7|R | 382 | |||||||||
| Pullus | 27-5-2023 | 5.625.270 | g-8|Z | 538 | |||||||||
| Pullus | 18-6-2023 | 5.556.408 | g-7|S | ||||||||||
| 112-2023 | |||||||||||
| dam: | dam 1 east | ||||||||||
| location: | Top of dam. On S-side: red/white traffic sign, nest 112 is just east of it. Same nest as 112-2022 | ||||||||||
| 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: | Almost within Elder (vliertje), old red spot visible. Yellow/black flag in Elder. Top of dam, 25 m W of 19. | ||||||||||
| eggs: | 3x egg, measured. | A | 90 - tip bottom | ||||||||
| B | 90 - tip bottom | ||||||||||
| C | 80 - tip bottom | ||||||||||
| 11-05-2023 | eggs: | 3 eggs | |||||||||
| 13-05-2023 | adult: | female = cach thayeri. Male is cach. | |||||||||
| 18-05-2023 | pulli: | 2 chicks ringed, 3rd not found. | |||||||||
| 27-05-2023 | pulli: | 3rd chick ringed today, near waterfront at S-side. | |||||||||
| 18-06-2023 | pulli: | g-7|S at waterfront. | |||||||||
| 25-06-2023 | adult: | thayeri and all 3 chicks present. 3x fledged. | |||||||||
below: Caspian Gull cachinnans 8|Z 1CY, October 31 2023, Bunschoten-Spakenburg, the Netherlands. Picture: Hans van Muiswinkel.
below: Caspian Gull cachinnans 8|Z 1CY, October 13 2023, Bunschoten-Spakenburg, the Netherlands. Picture: Hans van Muiswinkel.
below: Caspian Gull cachinnans 8|Z 1CY, October 10 2023, Bunschoten-Spakenburg, the Netherlands. Picture: Hans van Muiswinkel.
below: Caspian Gull cachinnans 8|Z 1CY, October 10 2023, Bunschoten, the Netherlands. Picture: Nel Bekema.
below: Caspian Gull cachinnans 8|Z 1CY, July 18 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans 8|Z 1CY, July 15 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans 8|Z 1CY, July 08 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.
below: Caspian Gull cachinnans 8|Z 1CY, June 25 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst.
below: Caspian Gull cachinnans 8|Z 1CY, May 27 2023, Lelystad colony, the Netherlands. Picture: Thijs Horst & Mars Muusse.
Finally, 3rd chick of this nest ringed today.
