| Number seen/Abundance | Date | Location | Comments | Species |
|---|---|---|---|---|
| P | 2005-04-01 | Foyle In the river Foyle approxamately 500 metres from the Foyle bridge, heading up the river in the opposite direction of the sea. then twice again the following day but this time closer to the Foyle Bridge. |
Not sure if one or a group seen in the middle of the river, it was a very calm day | Phocoena phocoena |