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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 27th, 2022: nest. | May 4th, 2022: nest. | . |
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nest | April 27th, 2022: 1 egg in nest. | May 4th, 2022: 3 eggs in nest. | May 9th, 2022: 3 eggs in nest. |
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partner 1 | May 4th, 2022: Herring Gull. | May 22nd, 2022: Herring Gull ringed r[6.A]. | . |
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pullus | May 30th, 2022: pullus r-6.=. Two siblings dead. | . | . |
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Visits and data:
Estimation egg laying: A-egg = April 26 2022. Estimating hatching = May 24 2022.
date | |||||||
27-04-2022 | 1 egg | egg no: | width (mm) | length (mm) | volume (cm3): | water test on April 27th: | |
A egg | 49,3 | 68,3 | -- | 0 - flat bottom | |||
04-05-2022 | code '121' sprayed on tarmac. | ||||||
3 eggs | egg no: | width (mm) | length (mm) | volume (cm3): | water test: | ||
A egg | 49,5 | 68,4 | -- | -- | |||
B egg | 45,6 | 68,6 | -- | -- | |||
C egg | 48,5 | 66,6 | -- | -- | |||
09-05-2022 | 3 eggs. | ||||||
17-05-2022 | 3 eggs. | ||||||
22-05-2022 | 3 eggs. Adult Herring Gull trapped at the nest. | ||||||
metal: | darvic: | wing: | Head + Bill: | Gonys: | Mass: | Greytone: | |
NLA 5625153 | r-6.A | 417 | 116,4 | 18,4 | 848 | 4.0-5.0 | |
30-05-2022 | 2 chicks dead in nest. One pullus ringed. | ||||||
metal: | darvic: | wing: | Head + Bill: | Bill: | Mass: | ||
NLA 5625181 | r-6.= | 35 | 60,2 | 30,5 | 180 |