Report a Monarch


We place tags on the underside of monarch wings.  These tags allow us 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.

Alert 1-877-897-7740 FREE CALL #06001 for sighted monarchs

Please provide the location, date, and tag number:

  • Call toll-free 1-877-897-7740 mailbox #7

Interested in tagging Monarchs? Click here.

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