The Audubon Naturalist Society, which has sponsored a biological water quality monitoring program for 25 years, has a few spots left in its upcoming stream science classes. The classes are open to anyone 10 years and older who has an interest in learning about local streams or who is considering joining our program. Start the summer off by getting to know about life in our waters!

Introduction to Stream Science*   
Classroom Session

Healthy Stream Biology
Section C: Tuesday, June 5 (7-9:30 pm)
Woodend Sanctuary, Chevy Chase, MD
In the classroom, we will explore how “benthic macroinvertebrates” — organisms that live in the bottom of our streams – help us assess a stream’s health. We will learn how to identify these organisms to the taxonomic level of order through a PowerPoint presentation and by examining preserved specimens in a hands-on session with microscopes.

Field Workshop

Section B: Saturday, June 9 (9:30 am – 12 pm)
Ten Mile Creek, Boyds, MD
In the field workshop, we will visit a healthy stream to practice monitoring techniques and to collect and identify the benthic macroinvertebrates we find.

To register, go to