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Coordinator: Albert de Jong Merijn Loeve Roland-Jan Buijs Thijs Horst Leon Kelder Mars Muusse |
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location: | April 9th, 2021. | April 9th, 2021. | . |
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partner 1: | April 23rd, 2021: adult male Caspian Gull cachinnans r-K.A (more images). | . | |
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pulli: | May 14th, 2021: pullus r[K.0]. | May 14th, 2021: pullus r[K.1]. | May 20th, 2021: pullus b[D|+]. |
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Visits and data.
Date: | details: | |||||
9-4-2021 | 2 eggs in nest. | egg no: | width (mm): | length (mm): | volume (cm3): | |
https://waarneming.nl/observation/210427028/ | A egg | 50.8 | 67.0 | |||
B egg | 52.1 | 70.8 | ||||
23-4-2021 | 3 eggs in nest. | egg no: | width (mm): | length (mm): | volume (cm3): | |
https://waarneming.nl/observation/210427028/ | A egg | 51.0 | 67.1 | |||
B egg | 52.4 | 70.8 | ||||
52.1 | 68.9 | |||||
Attempt to trap breeding adult. Adult trapped. | metal: | tibia: | wing: | head + bill: | bill: | |
Adult male Caspian Gull cachinnans. | NLA 6.211.436 | Red-K.A | 461 | 132.0 | 63.0 | |
mass: | moult score: | bill height: | grey scale: | Tarsus: & Swob: | ||
-- | 10x0 | 19.3 | 6 | 73.0 & 1078 | ||
14-5-2021 | 2 pulli in nest. | metal: | tibia: | mass (gr): | head + bill: | tarsus: |
https://waarneming.nl/observation/214663945/ | NLA 5.556.734 | r-K.0 | 216 | 69.3 | 40.3 | |
NLA 5.556.735 | r-K.1 | 169 | 62.2 | 35.8 | ||
20-5-2021 | 3 pulli in direct surrounding of nest. | metal: | tibia: | mass (gr): | head + bill: | wing: |
https://waarneming.nl/observation/214710893/ | NLA 5.556.734 | r-K.0 | 531 | 85.9 | 86.0 | |
NLA 5.556.735 | r-K.1 | 415 | 77.7 | 76.0 | ||
NLA 5.556.762 | b-D|+ | 513 | 86.2 | 84.5 | ||