Most painted ladies have already headed south, and new research reveals just how far these butterflies travel

The last red admirals and commas are feeding on ivy flowers in autumn sunshine and Britain’s butterfly year is drawing to a close once more.

One butterfly, though, is on the move. I’ve seen several painted ladies this month, but most have already headed south for the winter. The fate of British-born generations of painted ladies was a mystery until recently, when radar finally documented how they ascend to great heights before beginning their reverse migration.

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Source: Guardian Environment