My overnight MV had 2 Rusty-dot Pearls which I would like to think were migrants, along with a Dingy Footman, which is presumably a rather unusual second brood. Today, the 31st, a good sequence of butterfly records for Cambs in late October: between us David Hopkins and I have had so far Painted Lady and Red Admiral heading south and at least 2 Clouded Yellows, along with the more usual Peacocks, Small Tortoiseshells and Brimstones.