Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2019 | Cape May Bird Observatory - Avalon Seawatch | 30 september | Cape May Bird Observatory - Avalon Seawatch | 22 december | |||||
| 2018 | Cape May Bird Observatory - Avalon Seawatch | 24 september | Cape May Bird Observatory - Avalon Seawatch | 22 december | |||||
| 2017 | Cape May Bird Observatory - Avalon Seawatch | 22 september | Cape May Bird Observatory - Avalon Seawatch | 22 december | |||||
| 2016 | Cape May Bird Observatory - Avalon Seawatch | 3 october | Cape May Bird Observatory - Avalon Seawatch | 20 december |
