Western monarchs are showing up along the California coast in greater numbers than last year’s historic low. Migratory western monarchs are being reported at their overwintering sites in coastal California in greater numbers than last year, with hundreds at some …
Early Signs of Hope as Monarch Butterflies Return to California Overwintering Sites Read More »
The monarch community sadly lost a leader on Saturday, August 3, 2019, when Dennis Frey passed away. His contributions to the lives of many include the creation of the Monarch Alert Program at Cal Poly, the Western Monarch Thanksgiving Count, …
Dennis Frey passed away August 3, 2019, Nipomo, CA Read More »
Western monarch researchers and community scientists have been busy, contributing information vital to understanding the situation facing this imperiled population of America’s most well-known butterfly. Four new studies on western monarchs were recently published as part of the special issue …
Community Science Powers New Western Monarch Studies Read More »
Location: Online webinar Date & Time: Tuesday, February 26th, 2019 at 2 PM Eastern Time Description: Have you heard about the steep decline in the Western monarch population? Are you wondering how you can help? This webinar will explore the citizen …
Monarch Conservation Webinar – Western Monarch Population Down by 99%: How You Can Help Read More »
Population of monarchs overwintering in California at lowest level ever recorded Media Contacts: Emma Pelton, Endangered Species Conservation Biologist; [email protected], (971) 533-7245 Sarina Jepsen, Endangered Species Program Director; [email protected], (971) 244-3727 PORTLAND, Ore.; Thursday, 1/17/19—The population of monarch butterflies overwintering in California …
Monarch Butterflies in Western North America in Jeopardy Read More »
Working at a conservation nonprofit means that we often come across bad news, but the results from this winter’s Western Monarch Thanksgiving Count left us shocked: an all-time record low of 28,429 monarchs at 213 sites. This number is an 86% …
“An alarming, precipitous drop in the western monarch butterfly population in California this winter could spell doom for the species, a scenario that biologists say could also plunge bug-eating birds and other species into similar death spirals. Only 28,429 of …
The Xerces Society’s Western Monarch Thanksgiving Count provides a long-running record of the number of monarchs overwintering in California—including the steep decline of recent decades. Volunteers and biologists who take part in the Thanksgiving Count have been invaluable in monitoring …
Second New Year’s Count Supports Monarchs Movement Between Sites Read More »
The Xerces Society for Invertebrate Conservation, Groundswell Coastal Ecology, California Department of Parks and Recreation, and the U.S. Fish and Wildlife Service have developed a western monarch butterfly overwintering site management plan that also serves as a template for land …
A new study published today in Biological Conservation shows a dramatic decline in the California overwintering population of monarchs in the past three decades. Press release below: Monarch butterflies disappearing from western North America New study reveals that western monarch …
New study shows dramatic decline in the population since the 1980s Read More »
The Western Monarch Count is a community science program through the Xerces Society for Invertebrate Conservation. You can read more about it here.
Butterfly wing image by and (c)2008 Derek Ramsey (Ram-Man), licensed under the GNU Free Documentation License 1.2
This website contains links to other independent third party websites. These third party websites are not under our control, and we are not responsible for and do not necessarily endorse their content. We are not liable for any offensive, inaccurate, or objectionable content contained on these third party sites.
Monarch overwintering site location data provided by this website is for basic navigational purposes only and is not intended to be relied upon in situations where precise location information is needed or where erroneous, inaccurate or incomplete location data may lead to personal injury, death, or property or environmental damage. Neither we, nor any of our content providers, guarantee the availability, accuracy, reliability, or timeliness of location data displayed by our website.
Participants of this community science project assume all responsibility for following the rules and regulations of the areas in which they are surveying, including all notices of private property and no trespassing warnings. The Xerces Society encourages all participants to follow basic common sense and safety precautions when accessing and monitoring overwintering sites. Participants are ultimately responsible for their own safety and well-being.
