**We are now accepting ORDERS for 2019 tags. All preorders from January 1–July 21 will be shipped beginning in late July to arrive ahead of the migration in your area. Orders placed after July 21 should arrive within 7-10 business days but priority will be given to preorders and areas that will experience the migration first.**
- Your selected quantity of tags
- Tagging datasheet (also available here to be printed or filled out in Excel or another spreadsheet application)
- Tagging instructions
- Monarch & migration information
ORDERING TAGGING KITS
- **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 purchased.
- NOTE: Tagging kits are non-refundable.
- The fall migration season is from August–November. This is the only time of year we ship tagging kits.
TAGGING KIT SHIPPING
- All preorders from January 1–July 21 will be shipped beginning in late July to arrive ahead of the migration in your area. Orders placed after July 21 should arrive within 7-10 days but priority will be given to preorders and areas that will experience the migration first.
- Tagging kits ship via USPS First Class Mail without tracking numbers.
- USPS First Class Mail can take 5-7 days to be delivered.
- Tagging kits are mailed separately from all other items.
Please visit our main website for complete tagging information, including:
- How to tag monarchs
- Submitting your tagging data.
- Reporting recovered tags.
- Why we only tag monarchs during the fall migration
- Tag recoveries from previous years
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.