10.30 a.m., sunny, cool breeze, 50% small cumulus: Two grey wagtails perch on the rocks above the weir on the River Porter or Little Don at the top end of Langsett Reservoir. A dipper flies downstream and perches on the top edge of the weir, holding a butterfly in its beak – it looks like a meadow brown, orangey brown with a small dot in the centre of the underwing.
Up on the moor there’s a lot of activity amongst the red grouse. A meadow pipit climbs then performs it gently parachuting display flight.
A grey heron flies up from a quiet stretch of the shore of the reservoir. As far as I remember, this is the first time we’ve spotted a heron at Langsett.