I'm not really a great one for butterflies other than having a general passing interest but did quite fancy seeing the Purple Emperors at the Knepp Estate at Dial Post. They duly obliged with two iridescent males in the oak tree tops and a close range female:

Also present amongst others, two Turtle Doves, a Red Kite, numerous Buzzards, Pied Wagtail and lots of Green Woodpeckers.