North American Butterfly Association

Four-spotted Sailor

NABA Butterfly Counts

The NABA Butterfly Counts is an ongoing program of NABA to census the butterflies of North America (United States, Canada and partially Mexico) and to publish the results. Volunteer participants select a count area with a 15-mile diameter and conduct a one-day census of all butterflies sighted within that circle.

Maps give the location and compiler information for the individual counts.

If you are interested in participating in your area in 2014, please contact the compiler listed and join that count for a day of fascinating butterfly counting. If there is no count in your area, you may start your own if you know how to identify the butterflies. Otherwise, inspire a nature center or butterfly club to start one for you! For more information on the count program and how to conduct a count, please email:

NABA Count Program at counts@naba.org

Press releases promoting the NABA Butterfly Counts and count form and instructions for the U.S., count form and instructions for Canada, and count form and instructions for Mexico for compilers are available for downloading. All documents are Portable Document Format (PDF) files which may be viewed and printed by any program that can open and print PDF files. Adobe's Acrobat Reader is recommended and is available free from the Free Adobe Acrobat Reader Software page. You will need to download and install the Acrobat Reader software on your computer.

PLEASE NOTE: The printed count forms may be used for mailing count data to the NABA office ONLY for counts that existed prior to 2008 and that have not had a discontinuity of more than 2 years since the last year the count was held. The online system is the preferred method of entering the data since it is easier and more accurate. The online data entry system is required for all counts that began in 2008 onward.