Overwintering adult Butterflies have been on the wing in the garden today, with this warmer weather. Only a handful of species overwinter as adults, hibernating and then flying on warmer days. The Peacock is one- here’s one feeding and also warming itself on a metal tub. The other one, which just passed quickly through the garden is the Butterfly that all Butterflies are named after- the butter-coloured Brimstone. An absolute favourite of mine, the Brimstone is extending its habitats northwards. Today’s didn’t settle so here’s a photo from Potteric Carr Nature Reserve near Doncaster, last summer. Conditions: A warm, still, dry day with cloud and sun. Temperature: Max 14- Min 6c.