kateoplis: Monarch butterflies in the Pedro Herrada butterfly sanctuary, on a mountain in the Mexican state of Michoacan. Every year thousands fly up to 3,000 miles south from their home in the Rocky Mountains to spend winter in the warmer climates of Mexico and southern California. . . . . 

kateoplis: Monarch butterflies in the Pedro Herrada butterfly sanctuary, on a mountain in the Mexican state of Michoacan. Every year thousands fly up to 3,000 miles south from their home in the Rocky Mountains to spend winter in the warmer climates of Mexico and southern California. . . . .