The behaviour of butterflies like all fauna is facinating to observe, and the purple Hairstreak is no exception. Although these butterflies are seen on and around Oaks I have seen them on a variety of trees and plants. Here in these photo's from The Ingrebourne Valley they are on Sycamore where I have seen them for some years. On one warm evening recently I saw them on oak, Ash, Sycamore and Hawthorn. If you get your eye in on them you can see them creep around and between the leaves and stalks twisting and turning flying up every now and then, but always returning to the same place. In the morning sun they lie flat on their side as if to catch the sunrays on their wings.
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