Caterpillars munch on:
Adults take nectar from various flowers including:
And also feed on rotting fruit
This butterfly spends the winter as an adult, hiding in tree hollows, amongst logs, leaves and branches, or on tree trunks, where their broken wing shape makes them almost invisible.
There is even more about this species on the main Butterfly Conservation website
Caterpillars of the Comma butterfly are black and orange with a white mark down their back, giving them the appearance of a bird dropping!