Identifying Monarchs
Identifying Larvae
Report A Sighting
Monarch Hotspots
Tagging Monarchs
Request Tags
Report A Tag
Upcoming Events
Migration Map
Plant Nurseries
Support Us

Request Tags

Here's what to do if you need tags.

Tagging season begins August 1, but we also have special programs to monitor breeding monarchs and overwintering monarchs.

We provide free tags to citizen scientists tagging wild monarchs in the southwestern United States. Our tagging area includes Arizona, Utah, Nevada, New Mexico, western Colorado and the California deserts.

If you're interested in participating, please contact us by email at the address below with the following information:

  • How many tags you will use.
  • Your mailing address.
  • Your phone number--if any of your tags are recovered, we will contact you first.
We do ask that you send your data frequently so we have it on hand for future sightings. If you have received Southwest Monarch Study tags in the past, please submit your data before requesting more tags.

Please take a few minutes to review Tagging Monarchs and let us know if you have any questions.

To request tags, just email


Submitting Data

Please submit your data frequently as you tag. We need it to contact you when someone reports your tagged monarch. There are two ways to do this:

  • Email us a completed excel spreadsheet. Use one of these so we can merge it into our master database.
  • If you have an iPhone or iPad, you can use Nature Digger's Monarch SOS free app. It is easy to use. Look for Monarch SOS to be available soon for Androids.

We Are Blue!

Starting with its inception in 2003, the Southwest Monarch Study used blue tags. We switched to white tags from 2012 to 2014 to help with recoveries in Mexico. In 2015 we returned to blue tags. Sometimes a tagged monarch is seen at a great distance so the number cannot be read. When this happens, we can tell it's a Southwest Monarch Study tag by its blue color.

To request tags, just email


Unless specified otherwise, all data Copyright © 2010-2018 Southwest Monarch Study Inc. Information from this site may not be copied or distributed without prior written approval from Southwest Monarch Study

Webdesign Copyright © 2010-2018 Southwest Monarch Study Inc.