Coordinator:
Albert de Jong
Merijn Loeve
Roland-Jan Buijs
Thijs Horst
Leon Kelder
Mars Muusse
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Breeding biology
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Breeding species
Hybrid scores
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Nests at De Kreupel 2020
nest r-02P4 20
nest y-X804 20
nest D01 20
nest D02 20
nest D03 20
nest L01 20
nest L02 20
nest L03 20
nest M02 20
Nests at De Kreupel 2021
nest r-02P4 20
nest w-201U 21
nest g-XLHD 21
nest r-KA 21
nest r-KB 21
nest r-KC 21
nest r-KD 21
nest r-KE 21
nest r-KF 21
nest r-KH 21
nest r-KJ 21
nest r-KK 21
nest A01 21
nest C03 21
nest C04 21
nest C06 21
nest D01 21
nest D03 21
nest D05 21
nest D06 21
nest D07 21
nest D08 21
nest E01 21
nest H01 21
nest L01 21
nest L02 21
nest L05 21
nest L06 21
nest L07 21
nest M01 21
nest M04 21
nest M06 21
nest Q01 21
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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: |
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23-4-2021 |
1 egg in nest. |
egg no: |
width (mm): |
length (mm): |
volume (cm3): |
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Attempt to trap breeding adult. Failed. |
A egg |
50.6 |
73.8 |
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14-5-2021 |
2 eggs in nest. |
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2 adults near nest. One ringed w[201:U]. |
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https://waarneming.nl/observation/214662645/ |
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20-5-2021 |
1 egg hatching & 1 chick. |
metal: |
tibia: |
mass (gr): |
head + bill: |
tarsus: |
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Prey: 1x Roach. |
NLA 5.556.757 |
b-D|0 |
75 |
48.6 |
27.8 |
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https://waarneming.nl/observation/214707336/ |
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Camera trap near nest: 1 pullus & 2 adults. |
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https://waarneming.nl/observation/223648760/ |
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28-5-2021 |
2 chicks in nest. |
metal: |
tibia: |
mass (gr): |
head + bill: |
tarsus: |
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Unringed male Caspian & w[201:U] female Caspian. |
NLA 5.556.757 |
b-D|0 |
231 |
66.7 |
41.6 |
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NLA 5.556.771 |
r-B.2 |
168 |
61.2 |
36.2 |
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