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Coordinator: Albert de Jong Merijn Loeve Roland-Jan Buijs Thijs Horst Leon Kelder Mars Muusse |
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pulli: | May 20th, 2021: pullus b[D|2]. | May 20th, 2021: pullus b[D|4]. | . |
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prey: | May 20th, 2021: Roach 2x. | June 4th, 2021: Eel 2x. | June 4th, 2021: Eel 2x. |
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Visits and data.
Date: | details: | |||||
23-4-2021 | 3 eggs in nest. | egg no: | width (mm): | length (mm): | volume (cm3): | |
A egg | 49.8 | 73.4 | ||||
B egg | 50.9 | 71.7 | ||||
C egg | 51.4 | 72.1 | ||||
Attempt to trap breeding adult. Failed. | ||||||
14-5-2021 | Could not relocate the nest. | |||||
20-5-2021 | 3 pulli in nest. | metal: | tibia: | mass (gr): | head + bill: | tarsus: |
Prey: Roach 2x. | NLA 5.556.758 | b-D|2 | 132 | 58.3 | 35.1 | |
https://waarneming.nl/observation/214710481/ | NLA 5.556.759 | b-D|3 | 87 | 54.0 | 36.1 | |
NLA 5.556.760 | b-D|4 | 119 | 58.8 | 33.7 | ||
4-6-2021 | No chicks near nest. | |||||
Prey: fresh Eel 2x. https://waarneming.nl/observation/216520181/ | ||||||