Phenology
| Year | Migration site | First | Migration site | Last | |||||
|---|---|---|---|---|---|---|---|---|---|
| 2018 | Cape May Bird Observatory - Avalon Seawatch | 17 october | Cape May Bird Observatory - Avalon Seawatch | 20 december | |||||
| 2017 | Cape May Bird Observatory - Avalon Seawatch | 23 september | Cape May Bird Observatory - Avalon Seawatch | 19 december | |||||
| 2016 | Cape May Bird Observatory - Avalon Seawatch | 28 september | Cape May Bird Observatory - Avalon Seawatch | 19 december |
