Western Monarch Thanksgiving Count

The Western Monarch Thanksgiving Count is a yearly effort of volunteer citizen monitors to collect data on the status of monarch populations overwintering along the California coast. Thanks to the extraordinary efforts of a cadre of volunteers, we have over a decade of data demonstrating that monarchs have undergone a dramatic decline in the western U.S. This effort is coordinated by Dennis Frey, Shawna Stevens and Mia Monroe.

Would you like to participate in the Western Monarch Thanksgiving Count? We are looking for volunteers in California who can commit to visiting the same overwintering sites year after year. If this interests you, please contact Candace Fallon for more information.

We encourage Thanksgiving Count monitors to also fill out a brief, one-page habitat assessment so that we can understand more about what monarchs need and begin to track changes that occur at overwintering sites. Please consider using this form in addition to your count data sheet so that we can collect this invaluable information!
Habitat Assessment

Please remember that we are most interested in counts of monarch groves conducted during the week around Thanksgiving and the week around New Years day. You can download survey instructions and data sheets below.

Survey Instructions

Monarch Count Data Sheet

Western Monarch Thanksgiving Count data 1997-2013

See our press release regarding the 2013 Western Monarch Thanksgiving Count numbers.

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  • • The Xerces Society has awarded two $3,750 Joan M. DeWind awards for research into lepidoptera conservation
  • Butterfly-a-thon pledges raise $30 per species that Bob Pyle observes for butterfly conservation work
Additional Information

 

The Xerces Society • 628 NE Broadway Ste 200, Portland OR 97232 USA • tel 855.232.6639 • fax 503.233.6794 • info@xerces.org
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