The Large Skipper is a fairly common butterfly in Yeldham. It produces just one brood per year and over-winters as larvae on uncut stems of its food plant, Cocksfoot and various other grasses. On my small meadow I control the spread of unwanted tree seedlings and runners and limit the size of the bramble bushes by hand as and when necessary and never cut the grass.
Specimens with paler mottling look rather like Small Skippers. The male brand of the Large Skipper is much broader and more diagonal across the wing. As in the Small Skippers, the antennae inner/lower surfaces below the tips are often quite bright orange in the males.
The adults are on the wing in June and July with just the odd one or two in early August. The 2011 sightings in May were early, after a warm spring. I usually see the first at about the time that the blackberry flowers open on a north facing hedge.