Larus cachinnans in the Netherlands
(last update: August 16, 2020)
Albert de Jong
Merijn Loeve
Roland-Jan Buijs
Thijs Horst
Leon Kelder
Mars Muusse
Caspian Gull cachinnans B.2 2CY-3CY, April 2022 - April 2023, Asturias, Spain. Picture: José Antonio Cañizares & Menéndez Vega.
Red tibia ring r[B.2] and metal NLA 5.556.771, ringed as pullus Larus cachinnans on May 28 2021 at nest w-201:U in colony De Kreupel, the Netherlands (5247.00 N 513.00 E) - ringer Leon Kelder.
Brother/sister of the bird in the picture, which is b[D|0].
ID certain, parents known as mother Caspian Gull cachinnans w[201:U] and unringed father Caspian Gull cachinnans.
Recoveries:
01-04-2022 Bañugues (Strand), Asturias, Spain (4.338,00 N 538,00 W) - José Antonio Cañal
12-03-2023 Peñas, Asturias, SPANJE 4.339,00 N 550,00 W colourring read Daniel Velasco
21-03-2023 Gijón (Haven El Musel), Asturias, SPANJE 4.333,00 N 541,00 W colourring read Jose A. Tielve
22-03-2023 Gijón (Haven El Musel), Asturias, SPANJE 4.333,00 N 541,00 W colourring read Ignacio Menéndez Vega
26-03-2023 Gijón (Haven El Musel), Asturias, SPANJE 4.333,00 N 541,00 W colourring read Jose A. Tielve
14-04-2023 Gijón (Haven El Musel), Asturias, SPANJE 4.333,00 N 541,00 W colourring read Ignacio Menéndez Vega
04-08-2023 Medemblik (Gemaal Lely), Noord-Holland, NL 5.246,00 N 506,00 E colourring read Bert Winters
below: Caspian Gull cachinnans B.2 3CY, April 14 2023, Gijón - Asturias, Spain. Picture: Menéndez Vega.
below: Caspian Gull cachinnans B.2 3CY, March 22 2023, Gijón - Asturias, Spain. Picture: Ignacio Menéndez Vega.
below: Caspian Gull cachinnans B.2 3CY, March 12 2023, Peñas - Asturias, Spain. Picture: Daniel Velasco.
below: Caspian Gull cachinnans B.2 2CY, April 01 2022, Bañugues - Asturias, Spain. Picture: José Antonio Cañizares.
below: Caspian Gull cachinnans B.2 1CY, May 28 2021, De Kreupel - D, the Netherlands. Picture: Leon Kelder.
(no picture available for r-B.2, this b-D|0 is the sibling)
| Date: | details: | ||||||
| 23-4-2021 | 1 egg in nest. | egg no: | width (mm): | length (mm): | volume (cm3): | ||
| Attempt to trap breeding adult. Failed. | A egg | 50.6 | 73.8 | ||||
| 14-5-2021 | 2 eggs in nest. | ||||||
| 2 adults near nest. One ringed w[201:U]. | |||||||
| https://waarneming.nl/observation/214662645/ | |||||||
| 20-5-2021 | 1 egg hatching & 1 chick. | metal: | tibia: | mass (gr): | head + bill: | tarsus: | |
| Prey: 1x Roach. | NLA 5.556.757 | b-D|0 | 75 | 48.6 | 27.8 | ||
| https://waarneming.nl/observation/214707336/ | |||||||
| Camera trap near nest: 1 pullus & 2 adults. | |||||||
| https://waarneming.nl/observation/223648760/ | |||||||
| 28-5-2021 | 2 chicks in nest. | metal: | tibia: | mass (gr): | head + bill: | tarsus: | |
| Unringed male Caspian & w[201:U] female Caspian. | NLA 5.556.757 | b-D|0 | 231 | 66.7 | 41.6 | ||
| NLA 5.556.771 | r-B.2 | 168 | 61.2 | 36.2 | |||