Have you ever found a tiny tag on a Monarch Butterfly? If so, you've witnessed the Monarch Alert Program in action.As every Pagrovian knows, Monarch Butterflies overwinter in California, and PG is one of their favorite destinations. The population of western monarchs fluctuate from year to year, but it can exceed 100,000!
Monarch Alert is dedicated to tracking the population fluctuations in Monterey and San Luis Obispo counties. Their volunteers place tags on the underside of monarch wings. 
These tags allow researchers to individually identify butterflies that are later re-sighted. Re-sighting information provides data on movement between overwintering sites, persistence at individual sites, population estimates per site, and migration patterns in spring.
If you locate a tagged monarch, please report the details about your sighting to Monarch Alert. Call toll free at 1-877-897-7740. For more information about this fascinating program:
- Come see Monarch Alert's exhibit at the Library this month.
- Visit Monarch Alert's website.
- Follow the Monarch Alert report in the Cedar Street Times.
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