Monarch Joint Venture Blog

Eastern Monarch Butterfly Population Decreases In the 2022-2023 Overwintering Season

Western Monarch Populations Increase for the Second Year, but Our Work is Not Done

Over 250 volunteers surveyed 272 overwintering sites this winter, tallying a total of 335,479 monarch butterflies observed across the western overwintering sites, an increase of 88,242 monarchs! Read More

Eastern Monarch Population Holds Steady at 2.84 Hectares

Eastern monarch population shows very slight increase after 26% decline last year Read More

Western Monarch Mystery Challenge Documents Spring Migration

Now in its third year, the Western Monarch Mystery Challenge is an easy way to help protect monarchs in the West Read More

2021 Thanksgiving Count Shows Almost 250,000 Overwintering Western Monarchs: Let’s Celebrate, and then Get to Work

With the 2021 Thanksgiving Count showing almost 250,000 overwintering western monarchs, conservationists are relieved, and also scratching their heads. Read More