Prince William Conservation Alliance
PWCA Calendar
Sign up for our E-newsletter here.

View our local nature calendar here.


PWCA Open House
Wednesday, September 21, 5:00 to 7:30pm

Nokesville Christmas Bird Count
Monday, December 26, beginning at 7:00am

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,

PWCA Open House

When: Monday, December 5 from 5pm to 7:30pm

Where: PWCA Office, 2241F Tackett's Mill Drive, Woodbridge

Eat localSpecial guests include Occoquan District Supervisor Ruth Anderson, Sycamore Ridge Homeowners Assoc. President Rob Carswell, and Prince William County School's David Beavers.

Please join us for a drink, appetizers, and a lively conversation about the public school proposed by Chinn Park and the preservation of green open space in Prince William County.

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

Nokesville Christmas Bird Count

When: Monday, December 26, beginning at 7:00am

RSVP Required
Contact us at alliance@, 703.499.4954 to register and join a survey team, and receive meet up location.

Wood Duck by Julia FlanaganNow in it's 117th year, the Christmas Bird Count, led by the National Audubon Society, provides scientists with information on the status of bird populations across North America.

Birding enthusiasts are invited to join the Nokesville Christmas Bird Count (CBC), sponsored by Prince William Conservation Alliance. All CBC Circles cover a 15-mile diameter circle (113,000 acres).

The Nokesville count circle, centered at Merrimac Farm WMA, covers a diverse landscape at the edge of the Baltimore-Washington metropolitan area and captures the transition from coastal plain to piedmont ecosystems. Our survey area includes portions of Prince William Forest Park, Merrimac Farm WMA, several wetland banks, and large areas within MCB Quantico.

Please join us for a fun, rewarding day and be a part of the oldest and largest citizen science project in the Nation. Read more about the Nokesville CBC here!

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

House Finch in the coldWe'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.

View the bird list for Merrimac Farm HERE.

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

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.

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!