The beautiful and easy to identify Comma butterfly, one of the few UK Butterflies to overwinter as adults, was warming up in today’s sun. The Comma is also one of the few UK butterflies whose populations are on the rise, although after a severe decline that was probably due to the reduction of hops being grown, (a favourite food-plant of the Comma caterpillar, which also eat nettles). If you don’t know why it is called a Comma, look at the photo of it with its wings folded. Conditions: Cloud clearing to hot sun. Temperature: Max 20 Min 11C.