The number of monarch butterflies in California is in sharp decline this year. This is the second-lowest population recording ...

The iconic monarch butterfly is declining across North America. You can help make a difference by providing the species with ...

The Western population of the monarch butterfly has declined to a near-record low with fewer than 10,000 found living in ...

MADISON, Wis. (AP) — The number of monarch butterflies spending the winter in the western United States has dropped to its second-lowest mark in nearly three decades as pesticides, diminishing ...

The Western Monarch Count has reported a peak population of just 9,119 butterflies this winter, down from approximately 200,000 overwintering butterflies counted each year over the past three years.

MADISON, Wis. — The number of monarch butterflies spending the winter in the western United States has dropped to its second-lowest mark in nearly three decades as pesticides, diminishing ...

The number of monarch butterflies spending the winter in the western United States has dropped to its second-lowest mark in nearly three decades as pesticides, diminishing habitat and climate ...