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Welcome to BCNA

The Boulder County Nature Association is a private, non-profit membership organization committed to preserving the natural history of our region through research, documentation, and public education. We conduct field studies of wildlife and native plant communities; provide natural history information to public agencies; offer field ecology classes on bats, birds, butterflies, wild orchids, geology; and organize an annual symposium on the status of Boulder County ecosystems.

To learn how you can participate, click on Volunteer Opportunities, Classes, or Publications and Research.

BCNA News and
Announcements

Spring Calendar

Summer-Fall Classes (PDF version)

Spring 2013 newsletter (PDF)

Ecosystem Symposium - March 16

Butterflies of the
Colorado Front Range

Guidebook by Janet R. Chu and Stephen R. Jones

 

- Hairy Woodpecker at Betasso- George Oetzel

BCNA site The Web

Nature Almanac

Wild Boulder County cover

An archive of downloadable audio from the monthly series of short programs on KGNU, featuring Steve Jones and Ruth Carol Cushman. For each program, they visit a Boulder County nature site to record sounds there and discuss topics of interest. They are also the authors of Wild Boulder County: A Seasonal Guide to the Natural World. Available from Mountain Press or local bookstores.) Like the Nature Almanac broadcasts, the book covers a variety of topics and also suggests places to visit.

There is a Web page for each month with pictures and text in addition to the audio links. The mp3 files typically are about 3.5 MB.

May 2013 Audio, Redwing Blackbirds and others at Twin Lkes May Web page

Boulder County Almanac Podcast Feed New! Subscribe to the Nature Almanac Podcast. It's also available in iTunes.

Nature-Net is BCNA's email forum for announcements of classes and trips
and discussions of many topics relating to Boulder County's natural environment.
Nature-Net subscription information
updated 5/10/2013