The Potomac River is much cleaner today than it was in 1964 when then U.S. President Lyndon Johnson called it “a national disgrace,” but efforts are still needed to get it to an A grade, Hedrick Belin, President of the Potomac Conservancy, told attendees of a May 26, 2021, Zoom meeting of the Friends of Dyke Marsh. “It is still too polluted for swimming and fishing,” he cautioned.
Spring’s rebirth is always uplifting, especially when Dyke Marsh’s avian heroes and heroines put on a show. In May 2021, many people delighted in observing a barred owl pair (Strix varia) and their three young near the Haul Road trail.
Josh Brick shared a video of the two adults appearing to display affection or preening. “It was hard to pull ourselves away,” Josh reported.
In early May 2021, the eaglet pair in one of the nests in Dyke Marsh is growing up. They are often visible to visitors. The flapping eaglet is exercising its wing muscles, in preparation for flight. Young bald eagles typically fledge in Northern Virginia in June.
In these stunning photographs by Ashley Bradford taken on May 2, one of the eaglets leapt up and flapped and got up above the edge of the nest before dropping back down into it.
On February 17, 2021, 89 people became instant fans of the native southern flying squirrel (Glaucomys volans) thanks to a much-applauded Zoom presentation by naturalist Kim Young, from Fairfax County Park Authority’s Hidden Oaks Nature Center.
Ms. Young detailed the identifying characteristics, behavior, diet and habitat of these members of the rodent family, animals that weigh about the same as a cellphone, 2 ½ ounces, and are eight inches long, with their tail being from a third to a half of that length.
In 2021 in five sessions, as of April 4, 2021, FODM volunteers have collected 136 bags of English ivy off trees, an effort to save the trees.
English ivy (Hedera helix L.) is an invasive, evergreen, aggressive invader that can outcompete and smother native plants, block sunlight needed by herbs and seedlings and spread into the forest canopy.
“Water is essential for all life,” explained Charles Smith, opening his talk on November 10, 2020, a presentation titled “Plants Shaped by Water.” No matter where plants are, they need water, from a little carnivorous sundew to wetland pickerelweed to giant oak trees. Some systems, like saltwater and freshwater wetlands, are defined by water. Smith is a branch chief with the Fairfax County Stormwater Planning Division, a certified ecological restoration practitioner and a Virginia master naturalist instructor.
