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Coordinator: Albert de Jong Merijn Loeve Roland-Jan Buijs Thijs Horst Leon Kelder Mars Muusse |
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partner 1: | April 23rd, 2021: r-K.D (more images) & Leon Kelder. | June 2nd, 2021: male Caspian Gull cachinnans r-K.D. | June 1st, 2021: male Caspian Gull cachinnans r-K.D. |
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May 30th, 2021: pullus b[D|9] & 1x unringed pullus. | May 29th, 2021: male Caspian Gull cachinnans r-K.D. | May 30th, 2021: male Caspian Gull cachinnans r-K.D. | |
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partner 2: | May 30th, 2021: female Caspian Gull cachinnans. | May 29th, 2021: female Caspian Gull cachinnans. | May 31th, 2021: female Caspian Gull cachinnans. |
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pulli: | May 20th, 2021: pullus b[D|9]. | . | . |
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Visits and data.
Date: | details: | |||||
23-4-2021 | 2 eggs in nest. | egg no: | width (mm): | length (mm): | volume (cm3): | |
A egg | 48.4 | 69.3 | ||||
B egg | 48.6 | 70.3 | ||||
Attempt to trap breeding adult. Adult trapped. | metal: | tibia: | wing: | head + bill: | bill: | |
Adult male Caspian Gull cachinnans. | NLA 6.211.439 | Red-K.D | 472.0 | 141.0 | 70.5 | |
mass: | moult score: | bill height: | grey scale: | Tarsus: & Swob: | ||
1145 | 10x0 | 19.8 | 6.5 | 74.2 & 1080 | ||
14-5-2021 | 2 eggs in nest. | |||||
20-5-2021 | 1 pullus & 1 hatching egg. | metal: | tibia: | mass (gr): | head + bill: | tarsus: |
https://waarneming.nl/observation/214709154/ | NLA 5.556.761 | b-D|9 | 76 | 51.5 | 28.8 | |
28-5-2021 | 2 pulli in nest. | metal: | tibia: | mass (gr): | head + bill: | tarsus: |
NLA 5.556.761 | b-D|9 | |||||
NLA 5.556.775 | r-B.6 | 285 | 70.3 | 42.0 | ||
31-5-2021 | Camera trap near nest: 2 pulli (1x unringed???!!!) & 2 unringed adults. | |||||
https://waarneming.nl/observation/221650519/ | ||||||