Eastern populations have fallen by 80% but US government says it is unworthy of special attention
Watching an American indie band is not the most obvious way to commune with a wonder of the natural world but look up Saint Simon by the Shins on YouTube.
The band plays in a forest in central Mexico, surrounded by towering chandeliers of butterflies, trees full of butterflies, clouds of butterflies. It is a stunning encounter with the monarch, one of the world’s most remarkable migratory insects.