Nature Notes #8.
Roger Wilkinson estimated 5,000 + Spindle Ermine Moths along the northern edge of No 6 tank. Despite the blustery south-easterly they were sheltering within the Spindle shrubs that they de-foliaged in the caterpillar stage!
Spindle Ermine Moth, one of 5,000 present this evening along the banks of No 6 tank. Image by WSM.
Gatekeeper Butterfly, sheltering from the blustery south-eastery wind. Image by WSM.