Monarch Watch Tagging Kit
  • Monarch Watch Tagging Kit
  • USA Latitude Longitude Map From World Maps
  • Monarch Watch Tagging Kit
  • Monarch Watch Monarch Tagging Kit

**We are now accepting PRE-ORDERS for 2019 tags. We time the shipping of our tags to arrive right before fall migration begins in your area.**

The optimal time to tag for the fall migration varies by climate, and tagging too early can lead to unintentionally tagging summer generations of monarchs that will not migrate for overwintering.

You can determine peak migration time in your area using the chart and map images shown on this page. If you do not know the latitude of your shipping address, you may search your zip code on the internet to find it - e.g. "66047 latitude". Match this to the chart to learn when to expect your tagging kit to ship.

Please scroll down to the description for more important information

Price: $15.00

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    Item #: 121239

    **We are now accepting PRE-ORDERS for 2019 tags. Please keep in mind that while we BEGIN shipping tags in August, we time the shipping of your tags to arrive right before migration begins in your area.**


    • Your selected quantity of tags
    • Tagging datasheet (may be photocopied, printed, or filled out in Excel)
    • Tagging instructions
    • Monarch & migration information




    • **Monarch Watch tags are only shipped EAST of the continental divide**
    • Please only order enough tags for your tagging activities this year.
      • Tags are only good for the year they are issued.
      • NOTE: Tagging kits are non-refundable.
    • Peak fall migration season is from September - November. This is the only time of year we ship tagging kits.


    • We begin shipping tags in August to focus on the monarchs migrating to Mexico for overwintering.
    • Not all pre-ordered Tagging Kits ship ON August 1st. We start shipping orders with the northernmost shipping addresses first and work our way south. 
    • We ship to time the arrival of your tags with peak migration in your area. For example, if peak migration in your area is in October, we will ship your tags in late September.
    • Tagging kits ship via USPS First Class Mail without tracking numbers.
    • USPS First Class Mail can take 5-7 days to be delivered.

    We welcome you to visit our main website for more information. Use the links along the left side of that page to:

    • View a guide on how to tag monarchs. 
      • A demonstration video can also be viewed here.
    • Submit your tagging data.
    • Report recovered tags.
    • Learn why we only tag monarchs for fall migration
    • View tag recoveries from previous years
    • Feel free to stay awhile and learn all about monarch butterflies!

    There are two geographically distinct Monarch populations in North America. The eastern population overwinters in Mexico and breeds east of the Rocky Mountains. The western population overwinters along the California coast and breeds in areas west of the continental divide. Contact between eastern and western Monarchs is minimal suggesting that there is little exchange, or what scientists call gene flow, between these populations.

    In recent years, several people have transplanted migrating Monarchs between east and west to determine, if for example, western Monarchs introduced in the east would be found in Mexico. Many scientists are concerned about this practice and cite numerous reasons, such as the potential introduction of diseases from one population into another which is why this practice should be stopped immediately.

    • Learn more about the western monarch population here.
    • Resources, information and links can be found here and here.