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Friends of Dyke Marsh

 Dyke Marsh members
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Spring at Dyke Marsh

 Friends of Dyke Marsh is a volunteer group dedicated to preserving, restoring and enhancing Dyke Marsh, a freshwater tidal marsh in Fairfax County on the Potomac River just south of Alexandria, Virginia. The Dyke Marsh Wildlife Preserve is administered by the National Park Service.
Read here for more about FODM.

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Membership Meetings

2014 Schedule
September 10
November 12

Held on Wednesday 7:30 p.m. at Huntley Meadows Park Visitor Center, 3701 Lockheed Boulevard, Alexandria, VA 22306.

“Like” Us on Facebook

FODM is on Facebook. If you are already a Facebook.com member, just log in to your Facebook page and search for "Friends of Dyke Marsh" or type this link: https://www.facebook.com/DykeMarsh then "like" us.

Site updated by:
  T.D. Hobart

"Our" Ospreys Star

    Osprey nest

Osprey chick attempts a return to the nest while female adult observes.


Least Bittern in reeds near first observation area on boardwalk. Photos by William Young.

     William Young has produced a second video about “our” ospreys, titled Osprey Love Nest 2: Feeding and Fledging about the osprey nest at the Belle Haven Marina. It shows the behavior of the adult ospreys and their two chicks at the nest. In late March, he posted a video called Osprey Love Nest about the same nest before the eggs were laid. He wrote the script and shot the video footage for both videos, and Ashley Bradford (who lives in the Belle Haven area) does the narration. The adult ospreys built a nest on a platform near the boat ramp at the Belle Haven marina.
     The new video can be accessed here. The first video, Osprey Love Nest,, as well as other videos he has made about birds seen in the Dyke Marsh and Belle Haven areas, can be viewed here. An essay about ospreys appears in his book, The Fascination of Birds: from the Albatross to the Yellowthroat, which was published by Dover in May.

Beaver Activity in Western Dyke Marsh

   Beaver lodge
     FODMer Laura Sebastianelli is monitoring beavers in the western part of Dyke Marsh, behind River Towers. On May 1, she spotted two families, two adults and a kit and two adults and two kits nursing. At one point, she saw five adults and three kits on top of the lodge and at least one beaver swimming around. Thank you, Laura. This is a very special, little-visited part of Dyke Marsh.

FODM Meeting Calendar

     The quarterly meetings of the Friends of Dyke Marsh in 2014 will be held on the dates below. All meetings will be held at 7:30 p.m. at the Huntley Meadows Park Visitor Center, 3701 Lockheed Boulevard, Alexandria, VA 22306.
     Wednesday, September 10, Climate Change, Storms and the Role of Wetlands – How severe weather events are increasing, how wetlands buffer shorelines and absorb floodwaters, among other functions. Ms. Molly Mitchell, a wetland scientist with the Virginia Institute for Marine Science, will discuss these issues. For details about the meeting click here.


     Wednesday, November 12, Bats -- The fascinating world of bats, our only flying mammal, their importance and threats.

Help Find Invasive Snails


Invasive snails found on the shore of Dyke Marsh. Photo by Glenda Booth.

     Michelle Ryan, a Ph.D. student at George Mason University, invites volunteers to help in her study of the distribution and role of the mystery snails often spotted along the shoreline of Dyke Marsh and the Potomac River from July to September. She will hold several short training sessions at Occoquan Regional Park. For more information and to help, contact her at jryan10@gmu.edu or 571-723-2754.

Nature's Free Services

     Nature provides free services, from filtering water pollutants to providing medicines. You can read all about it in this article by FODM President Glenda Booth in Virginia Wildlife magazine.

Dyke Marsh Gets TV and Online Recognition

Producers of This American Land chose the Dyke Marsh Wildlife Preserve as one of America's little known but special places. We agree. View a video of it online here.

Sunday morning bird walks

Northern CardinalThe weekly Sunday morning bird walks are held every Sunday morning all year. Meet at 8 a.m. in the south parking lot of the Belle Haven picnic area. Walks are led by experienced birders and all are welcome.

Friends of Dyke Marsh, Inc. is a non-profit 501(c)(3) organization.
Copyright 2014 Friends of Dyke Marsh, Inc. All rights reserved.
Last Revised: August 25, 2014