| Date/time (local) | Occurrence | Latitude | Longitude | Notes |
|---|---|---|---|---|
| 05/19/21 20:55:11 | Possibly detected | 42.4664 | -70.5623 | |
| 05/19/21 21:10:11 | Possibly detected | 42.4671 | -70.5634 | |
| 05/19/21 21:25:11 | Possibly detected | 42.4678 | -70.5646 | Long downsweeps in these last few periods. Probably humpback but there is no obvious song pattern. |
| 05/19/21 22:25:11 | Possibly detected | 42.4708 | -70.5692 |
| Date/time (local) | Latitude | Longitude | Notes |
|---|---|---|---|
| 05/19/21 21:25:11 | 42.4678 | -70.5646 | Long downsweeps in these last few periods. Probably humpback but there is no obvious song pattern. |