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Coordinator: Albert de Jong Merijn Loeve Roland-Jan Buijs Thijs Horst Leon Kelder Mars Muusse |
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eggs: | April 9th, 2021. | April 9th, 2021. | April 9th, 2021: 2 eggs in nest. |
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pulli: | May 14th, 2021: pullus r[K.Z]. | May 14th, 2021: pullus r[K.=]. | May 14th, 2021: pullus r[K.+]. |
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prey: | May 28th, 2021: Rounded Goby 1x. | ||
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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/210431063/ | A egg | 50.2 | 72.5 | |||
B egg | 50.7 | 71.2 | ||||
23-4-2021 | 3 eggs in nest. | egg no: | width (mm): | length (mm): | volume (cm3): | |
A egg | 49.9 | 72.2 | ||||
B egg | 51.2 | 71.2 | ||||
Attempt to trap breeding adult. Failed. | C egg | 49.9 | 72.9 | |||
14-5-2021 | 3 pulli in nest. | metal: | tibia: | mass (gr): | head + bill: | tarsus: |
https://waarneming.nl/observation/214663458/ | NLA 5.556.731 | Red K.Z | 205 | 65.5 | 41.7 | |
NLA 5.556.732 | Red K.= | 250 | 67.3 | 43.6 | ||
NLA 5.556.733 | Red K.+ | 239 | 68.3 | 42.9 | ||
20-5-2021 | Only 1 chick found between blocks. | metal: | tibia: | mass (gr): | head + bill: | wing: |
NLA 5.556.733 | Red K.+ | 547 | 85.6 | 90.0 | ||
28-5-2021 | No chicks, but many shit traces. | |||||
Prey: Rounded Goby 1x https://waarneming.nl/observation/215269092/ | ||||||