The Lake District has had a pair of Ospreys nesting near Bassenthwaite since 2001. They have successfully raised a number of chicks. The have been several sightings of other Ospreys in the area, most recently near the foot of Windermere.
This week's Westmorland Gazette has a picture of one taken at Staveley-in-Cartmel, just last week. The terrain around the south end of the lake is similar to that where the Bassenthwaite birds are nesting with limited public lakeshore access which would give any resident birds an opportunity to hunt in peace. There are also other smaller tarns and reservoirs in the area which would afford a good source of hunting for these magnificent birds.
Further information on the RSPB Bassenthwaite Ospreys can be found here