Owls, Eagles and Woodcocks Delight

Spring 2023 brings rebirth and birth. One barred owl (Strix varia) pair has a very visible tree-cavity nest that will attract many human admirers this spring and observant visitors have frequently seen an active great horned owl (Bubo virginianus) in March.

Floodwall and Levee Near Dyke Marsh Is Questioned

In June 2022, the U.S. Army Corps of Engineers’ (ACE) proposed a “tentatively selected plan” to build a floodwall and levee in the Belle Haven, New Alexandria, Belle View and River Towers areas of Fairfax County near the Dyke Marsh Wildlife Preserve.

Record Number of Volunteers Give Back on MLK Day

On the January 16, 2023, Martin Luther King Day of Service, 131 enthusiastic volunteers clipped English ivy (Hedera helix) off trees in Dyke Marsh and collected 70 bags of trash weighing 446 pounds.

Many Birds Stand Out in Winter

Winter brings several species of migratory waterfowl to the Potomac River and Dyke Marsh and many birds stand out as they perch on leafless tree limbs, search for prey and forage on the ground. Still some, like barred owls (Strix varia) are expert at camouflaging.

Volunteers Tackle Never-Ending Invasive Plants

For at least 15 years, the Friends of Dyke Marsh have worked to control many species of invasive plants in the preserve. Invasive plants displace native plants and replace wildlife food sources with which native wildlife co-evolved.

Getting the Real Story on Bats

On October 26, 2022, bat educator Deborah Hammer gave an online presentation on bats, dispensing bat facts and dispelling bat folklore. Deborah is a board member of both FODM and Bat Conservation and Rescue of Virginia.

Fall Colors Bring Cheer

Though the October 24, 2022, sky was overcast, fall’s colors cheered 22 enthusiasts on a walk led by Margaret Chatham and Alan Ford with the Potowmack Chapter of the Virginia Native Plant Society.

Fall Plants Intrigue FODMers

Twenty FODMers delighted in studying the plants of the preserve on a walk led by Dr. Elizabeth Wells on September 17, 2022. Many plants were dropping or ready to drop their seeds to start the next generation.

Butterflies and Dragonflies Abound

On July 20, 2022, 20 butterfly enthusiasts spotted 15 species of butterflies, on a walk in Dyke Marsh, led by Larry Meade.

Talented FODM Photographers Are Winners

Congratulations to two FODMers whose photographs were selected for the 2022 Virginia Wildlife magazine’s annual photography showcase.

Historic Imagery Viewer Shows Changes over Time

Fairfax County has an imagery viewer that can help people understand the extent of the wetland in the past and provide context for marsh restoration.

An FODM Ecology Walk

On June 25, 2022, ecologist Charles Smith led a walk for 20 members of the Friends of Dyke Marsh along the Dyke Marsh Haul Road trail. He explained that Dyke Marsh is in the coastal plain, a geologic region with gravel deposits, unlike the Piedmont which has many rock formations. Dyke Marsh, a freshwater tidal wetland, has two three-foot tides a day, on average.

What Is Dyke Marsh?