The Southland is experiencing a rare sighting this week: About 1 billion butterflies swarming the skies during their migration from Mexico to the Pacific Northwest.

via ‘So Magical’: 1 Billion Butterflies Flutter Into SoCal During Migration From Mexico — CBS Los Angeles

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The Monarch butterfly, scientifically known as Danaus Plexippus, is likely the most well-known butterfly in North America. The Monarch butterfly habitats from southern Canada, throughout the United States and to northern Mexico. These butterflies are known for having the most extensive insect migration in North America and can travel up to 4,000 km (2,500 m) […]

via The Monarch Butterfly Makes a Comeback — Operation EARTH

The San Francisco Chronicle reports In 1981 the Xerces Society, a nonprofit environmental organization that focuses on invertebrate conservation, counted more than 1 million western monarchs wintering in California. The group’s most recent count, over Thanksgiving weekend, recorded less than 30,000 butterflies — an 86-percent decline since 2017 alone. Researchers with the group called the number “disturbingly […]

via California Monarch Butterfly Population Declines 86 Percent — Natural History Wanderings