Six years ago naturalist Chris Packham entered a maelstrom of Monarch butterflies.

Millions of black and orange wings beat about him high in the Mexican forest, the butterflies' unique migration having taken them 3,000 miles across America to the relative safety of the pine forests.

Now Packham returns for this most spectacular of wildlife experiences - but he begins to doubt whether he'll ever see the Monarchs again.

Broadcast Dates

  • 20040316