|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Coordinator: Albert de Jong Merijn Loeve Roland-Jan Buijs Thijs Horst Leon Kelder Mars Muusse |
|
pulli: | May 14th, 2021: pullus r[K.5]. | May 14th, 2021: pullus r[K.6]. | June 11th, 2021: parent & pullus. |
![]() |
![]() |
![]() |
|
prey: | May 20th, 2021: Rounded Goby 1x. | May 28th, 2021: Cormorant egg 5x. | May 28th, 2021: Roach 2x. |
![]() |
![]() |
![]() |
|
May 28th, 2021: Black-headed Gull pull 1x. | May 28th, 2021: large white-headed gull egg 1x. | ||
![]() |
![]() |
![]() |
Visits and data.
Date: | details: | |||||
23-4-2021 | 3 eggs in nest. | egg no: | width (mm): | length (mm): | volume (cm3): | |
A egg | 67.9 | 49.5 | ||||
B egg | 65.1 | 48.8 | ||||
C egg | 71.4 | 50.2 | ||||
Attempt to trap breeding adult. Failed. | ||||||
14-5-2021 | 2 pulli & 1 hatching egg in nest. | metal: | tibia: | mass (gr): | head + bill: | tarsus: |
https://waarneming.nl/observation/214664240/ | NLA 5.556.739 | r-K.5 | 66 | 49.0 | 28.9 | |
NLA 5.556.740 | r-K.6 | 72 | 49.8 | 28.2 | ||
20-5-2021 | 1 pullus present. | metal: | tibia: | mass (gr): | head + bill: | tarsus: |
Prey: Rounded Goby 1x; Black-headed Gull pull 2x | NLA 5.556.739 | r-K.5 | 153 | 60.8 | ||
https://waarneming.nl/observation/214907849/ | ||||||
28-5-2021 | No chicks present. Many prey left-overs. | |||||
https://waarneming.nl/observation/215271016/ | ||||||
11-6-2021 | Camera trap: 1 pullus & 1 adult. https://waarneming.nl/observation/224226687/ | |||||