In 2006 there were 29,000 Monarch butterflies in Pacific Grove, California. Today there are 642.
resources for learning more:
There is incredible information on Monarchs and their decline on YouTube and other online resources. Here are a few of my favorite authoritative resources:
The Incredible Journey of the Butterflies
https://www.youtube.com/watch?v=6mQFXlzhGIE
Unravelling the Monarch Migration
https://www.youtube.com/watch?v=fBakLuH6kDY
Why we need Pollinators
https://www.pollinator.org/pollinators
The Monarch Waystation Program
https://www.monarchwatch.org/waystations/
Center for Biodiversity, Petition on Monarch Butterfly Endangered Species Act
https://www.biologicaldiversity.org/species/invertebrates/monarch_butterfly/pdfs/Monarch_ESA_Petition_QA.pdf
The Western Monarch Count Resource Center
https://www.westernmonarchcount.org/downloads/
Pacific Grove Museum of Natural History: How to Help Monarchs
https://www.pgmuseum.org/how-to-help-monarchs
Monarch Joint Venture; School Yard Butterfly Gardens https://monarchjointventure.org/images/uploads/documents/SchoolyardGardensUpdated.pdf