For years, the number of Western monarch butterflies has been dropping. Last year, there was a surprising increase in monarch numbers. Now, scientists want people in the western US to help out by sending in any pictures of monarchs they take this spring.
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Scientists are worried about Western monarch butterflies and are trying to understand why they're struggling. To answer their questions, they're asking people in the western US to send in any pictures of monarchs they take this spring.
Heavy rains in Southern California have helped create a "super bloom" of wildflowers in the desert. And these healthy plants have led to unusually high numbers of painted lady butterflies flying north this year.
Every year, butterfly lovers in California go out in November to count monarch butterflies. The 2018 count had a very worrying result - monarch numbers had dropped by 86% since 2017.