Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2019 | Cape May Bird Observatory - Avalon Seawatch (NJ) | 24 September | Cape May Bird Observatory - Avalon Seawatch (NJ) | 27 November | |||||
| 2018 | Cape May Bird Observatory - Avalon Seawatch (NJ) | 27 October | Cape May Bird Observatory - Avalon Seawatch (NJ) | 27 October | |||||
| 2016 | Cape May Bird Observatory - Avalon Seawatch (NJ) | 19 October | Cape May Bird Observatory - Avalon Seawatch (NJ) | 19 October |
