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Extended season for northern butterflies. http://t.co/FZ3tRHTyJI
Extended season for northern butterflies. http://t.co/FZ3tRHTyJI
Extended season for northern butterflies http://t.co/GoWTXOeb0z
Longer fluttering: extended season for butterflies detected via #citizenscience in Sweden http://t.co/5m10PaWHup