We recently spent a couple of days carrying out research work on Grassholm (6th and 7th August). On both days we noticed porpoise feeding in a similar area about a mile west of Grassholm on the same state of tide (end of slack water / start of the flood). On 6/8 there were a minimum of 3 animals; on 7/8 there were a minimum of 12 (also good numbers of common dolphins making use of the same area on both days)
Greg (RSPB)
