Phenology
Year | Migration site | First | Migration site | Last | |||||
---|---|---|---|---|---|---|---|---|---|
2021 | ![]() |
VRS Castricum | 10 October | ![]() |
VRS Castricum | 10 October | |||
2020 | ![]() |
VRS Castricum | 30 September | ![]() |
VRS Castricum | 17 October | |||
2011 | ![]() |
VRS Castricum | 15 October | ![]() |
VRS Castricum | 31 October |