Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2017 | Cape May Bird Observatory - Avalon Seawatch (NJ) | 26 September | Cape May Bird Observatory - Avalon Seawatch (NJ) | 20 October | |||||
| 2016 | Cape May Bird Observatory - Avalon Seawatch (NJ) | 22 September | Cape May Bird Observatory - Avalon Seawatch (NJ) | 22 September |
