White-letter hairstreak, St Helens

White-letter hairstreak occur rarely in St Helens largely due to the rarity of the host tree, elm. However they can be found in a few places and today I called in at one of the sites and counted at least six flying around the tops of the trees and for some reason occasionally landing on a hawthorn bush. Due to them usually staying high, they're difficult enough to see let alone photograph, and this picture is a phone scoped video grab.

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