Plenty of food for thought in this article.
Not least the proposal for attempting to shift the larval food plant of the English subspecies of Swallowtail.
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link.springer.com/article/10.1...
Abstract The Swallowtail butterfly, native to the United Kingdom (Papilio machaon subspecies britannicus), is found almost exclusively in the Norfolk Broads, where it has been isolated for nearly 50 y...
