A presumed adult,
thought to be this species, was watched on the 26th May drifting
out of St. Catherine's Valley, Marshfield. The bird was first seen around
06:00 at a height of about 25 metres over the track
between Halldoor Lane and
Nailey Farm at approximately ST: 776 720 south and west
of Marshfield. It was last seen leaving the valley
heading in a generally north-north-westerly direction
towards West Littleton.
This is the first documented
reference to this species in S. Gloucestershire.