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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 9th, 2021: male g[XLHD] hybrid type. | April 9th, 2021: male g[XLHD] hybrid type. | June 17th, 2021: male g[XLHD] hybrid type. |
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partner 2: | April 9th, 2021: female Herring Gull. | April 9th, 2021: female Herring Gull. | . |
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pulli: | May 14th, 2021: pullus p[FG]. | May 14th, 2021: pullus p[FJ]. | . |
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Visits and data.
Date: | Egg no: | Width (mm) | Higth (mm) | Volume (cm3) | Details: | |
9-4-2021 | A egg | 51.5 | 70.3 | 3 eggs. Male is German g[XLHD], female is unringed. | ||
B egg | 51.1 | 69.5 | https://waarneming.nl/observation/210425539/ | |||
C egg | 51.9 | 72.3 | ||||
23-4-2021 | 3 eggs. Attempt to trap adult with cage. Failed. | |||||
14-5-2021 | Metal: | Tibia: | Head + Bill: | Tasus: | Mass (gr): | No eggs. 2 chicks out of nest. Where is 3rd chick? |
5556706 | Pale FG | 62.8 | 38.7 | 162 | https://waarneming.nl/observation/214568915/ | |
5556707 | Pale FJ | 63.5 | 40.6 | 203 | ||
20-5-2021 | No chicks near nest, but recent shit traces present. Alarming parents. . | |||||
28-5-2021 | Alarming male approx 50 meters west. Pulli guarded to better hiding place? | |||||
https://waarneming.nl/observation/215267282/ | ||||||
4-6-2021 | Alarming male. | |||||
https://waarneming.nl/observation/216519571/ | ||||||
17-6-2021 | Alarming male. | |||||
https://waarneming.nl/observation/217411696/ | ||||||