On a breezy walk around Letchmire Pastures, near Allerton Bywater we found lots of basking Gatekeeper in sheltered spots, this one (above) is a female indicated by the absence of the dark branding of the upper forewing, a defining characteristic of the male (below) which is included for comparison.
A male Meadow Brown basking open winged.
This male Gatekeeper on Ragwort has a deformed hindwing, but seemed to get around OK. The single black dot underneath the double eyespot indicates the male.