Clouded yellow butterflies are pretty common in southern Europe but here in
the UK they are migrants, usually to the south and east coast. They
occasionally reach North West England during invasion years but they are still
usually coastal, so it's been great to see up to five at Bickershaw Country
Park over the past few days. They always land with their wings closed, I don't
think I've ever seen one landed with its wings open and the open wing photos
in this post are only possible because they are video grabs of a butterfly in
flight.
Elsewhere on the site, the lesser emperor and at least one Norfolk hawker are still on the stock pond and at least seven keeled skimmers are on the stream between New Water and Nevisons.
The video is slowed down to 1/4x.
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