Butterflywatch: small blue makes waves between downpours

Britain’s smallest butterfly has been spotted more than 25 miles from its nearest known colonyIt seems not to have stopped raining since last month’s Butterflywatch but it has been quite warm and in the gaps between the deluges I’ve seen plenty of Britain’s largest butterfly, the swallowtail, in its Norfolk heartland.I’ve also admired hundreds of migratory painted ladies, blown in on southerly winds, in what is the largest invasion for a decade but still well short