Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2019 | Cape May Bird Observatory - Avalon Seawatch (NJ) | 1 October | Cape May Bird Observatory - Avalon Seawatch (NJ) | 11 November | |||||
| 2017 | Cape May Bird Observatory - Avalon Seawatch (NJ) | 1 October | Cape May Bird Observatory - Avalon Seawatch (NJ) | 1 October | |||||
| 2016 | Cape May Bird Observatory - Avalon Seawatch (NJ) | 1 October | Cape May Bird Observatory - Avalon Seawatch (NJ) | 15 October |
