Yesterday, warm sun and a warm wind brought the first small tortoiseshells of the year out of hibernation on my mountain. Today I saw three, at three different places near my house, in late morning. As I lay down photographing one of them, I found I had been stung by baby nettles just coming through - so it is just possible that flying at this time of year can be productive (it happens every year). However, as cold weather is the norm in February I would expect the butterflies to find somewhere to go back to sleep and wake up in March, having had strange dreams of a man and a dog staring down at them.
Don't worry - I won't bore UK lepsters with each and every sighting

, but it's interesting to note when the season begins.
Guy