Prince William Conservation Alliance
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Butterfly Identification Workshop
Saturday, July 22, 1 to 3pm

2017 Butterfly Count - Manassas Circle
Saturday, July 29, beginning at 10 am

Volunteer! Wildlife Garden at Merrimac Farm WMA
Saturday, July 1, 9am to noon

Volunteer! Minnieville Road Buffer Restoration
Saturday, July 15, 9am to noon

Bird Walk at Merrimac Farm
Last Sunday of every month beginning at 8:00am... except for December, when we host the Nokesville Christmas Bird Count

Questions? Contact PWCA at 703.490.5200,

Most of our programs are free of change thanks to the generous support from people like you!

Click here to read more about us. Click here to donate and support local opportunities.

View our local nature calendar here.

Butterfly Identification, Habits and Habitat Workshop - Brush Up for Next Weeks Butterfly Count

When: Saturday, July 22, 1 to 3pm

RSVP Required to alliance@, 703.499.4954.

Where: Merrimac Farm Wildlife Management Area, 15014 Deepwood Lane, Nokesville 20181, directions

MonarchBrush up on your butterfly identification skills in this hands on workshop led by Larry Meade.

From egg to adult, butterflies light up our neighborhoods and natural areas. Learn more about the butterflies you are most likely to see in the Prince William area.

Join us the following Saturday to count butterflies in the Merrimac Farm WMA Circle of the Annual Butterfly Count. Free, everyone is welcome.

2017 Butterfly Count - Manassas Circle

When: Saturday, July 29, beginning at 10am

RSVP Required to alliance@, 703.499.4954. You'll receive the meeting location for your survey team.

MonarchHelp us count butterflies for the Annual 4th of July Butterfly Count and learn more about butterfly populations close to home.

This count is part of a nationwide program led by the North American Butterfly Association (NABA), which compiles information about butterfly populations and distribution that's used to study the effects of climate and habitat change on North American butterflies.

“Every single day there are fewer butterflies in the United States than there were the day before. You don’t have to be a genius to figure it out,” said geneticist and NABA president Jeffrey Glassberg.

Here in Prince William on July 29, we'll form teams and see how many butterflies we can find within our 113,000 acre count circle (centered on Manassas Airport). To view our survey area on Google Earth, use the coordinates 38.724270, -77.500466 as the center point for a circle with a 7.5 mile radius.

We submit our compiled results to NABA's national database for butterflies. Everyone is welcome. We are also seeking tips on specific areas to survey, notably areas with flowers. Please email us if you have ideas.

Wildlife Garden Workday


Saturday, July 1, 9am to noon

Saturday, May 20, 9am to noon

Where: Merrimac Farm Wildlife Management Area, 15014 Deepwood Lane, Nokesville 20181, directions

Zebra Swallowtail on ButterflyweedThanks to volunteer support, we created an area at Merrimac Farm WMA where people and the environment can come together as one. It's a great area to watch wildlife, learn about native plants and pollinators, and get ideas for your own backyard.

We need help to keep nonnative invasive plants in check to maintain high quality habitat. Even if you can come just once, your help makes a big difference. Wear long pants, sturdy shoes, and long socks.

Questions and RSVP (appreciated) to alliance@ or 703-499-4954.

Read more about Merrimac Farm Wildlife Management Area HERE.

Minnieville Road Buffer Spring Clean Up

When: Saturday, July 15, 9am to noon

RSVP appreciated to alliance@, 703.499.4954

Where: Meet in the parking lot for K9 Gunner Dog Park near the intersection of Minnieville Road and Colby Drive, directions

Swamp MilkweedOur Minnieville Buffer Project near K9 Gunner Memorial Dog Park has helped transform a barren slope from an environmental problem into an attractive buffer that showcases Virginia’s native plants.

Together with community volunteers, we planted hundreds of native Virginian trees, shrubs and wildflowers in this area and they are making an important contribution to wildlife habitat and community appearance.

We need your help to to keep this area looking beautiful and free from nonnative invasive plants! Please join us... it's lots of fun and there's a great return on your investment. Wear long pants, sturdy shoes, and a hat to keep off that sun.

PWCA Open House

When: Monday, May 22, 5:30 to 7pm

Where: Prince William Conservation Alliance, 2241F Tackett's Mill Drive, Woodbridge, directions

Backyard Racoonwith special guest Kevin Rose, VA Dept. of Game & Inland Fisheries

Please join us to learn more about our local wildlife, habitats, and Merrimac Farm, the first Wildlife Management Area in Northern Virginia.

Our Open House is free of charge, everyone is welcome. For more information, contact us at or 703-499-4954.

Bird Walks at Merrimac Farm

When: On the last Sunday of every month at 8am

Where: Meet at Merrimac Farm, Stone House, 15014 Deepwood Lane, Nokesville

Phoebe by Julia FlanaganWe'll look for birds as we travel through the uplands to the edge of the floodplain, covering a variety of habitats, including open fields and woodland edges. Everyone is welcome.

Dress for the weather, bring binoculars and cameras. More info and RSVP (appreciated) to PWCA , 703.499.4954 or

View the bird list for Merrimac Farm HERE.


The best time to plant a tree was 20 years ago. The second best time is today.
Prince William Conservation Alliance is a nonprofit watershed organization serving Prince William and surrounding communities. We're working to explore, enjoy and protect our natural areas, and increase community involvement in stewardship opportunities.