Butterfly and dragonfly surveys are carried out in temperate months (April-October), normally on Friday mornings, at one of four sites around Occoquan Bay, all within the 15-mile diameter circle established for the annual North American Butterfly Association's Annual Count.

Many know Northern Virginia for its economic dynamism, cultural development and ever-changing landscape.  Less well known are the places sheltering remnants of an earlier, vital, natural history.  If you would like to discover native birds, other fauna and flora — in the company of dedicated citizen scientists — then consider joining one or more of these continuing natural resource surveys.

NVBA partners with Mason Neck State Park to host regular bird outings every fourth Saturday of the month from 8:00–10:00 AM.

Join us for a free bird and nature walk in celebration of Black Birders Week at Upton Hill Regional Park!

Butterfly and dragonfly surveys are carried out in temperate months (April-October), normally on Friday mornings, at one of four sites around Occoquan Bay, all within the 15-mile diameter circle established for the annual North American Butterfly Association's Annual Count.

Many know Northern Virginia for its economic dynamism, cultural development and ever-changing landscape.  Less well known are the places sheltering remnants of an earlier, vital, natural history.  If you would like to discover native birds, other fauna and flora — in the company of dedicated citizen scientists — then consider joining one or more of these continuing natural resource surveys.

Identify local birds and their habitats with experienced birders who will lead a walking tour around Del Ray, Alexandria.

NVBA partners with Mason Neck State Park to host regular bird outings every fourth Saturday of the month from 8:00–10:00 AM.

Butterfly and dragonfly surveys are carried out in temperate months (April-October), normally on Friday mornings, at one of four sites around Occoquan Bay, all within the 15-mile diameter circle established for the annual North American Butterfly Association's Annual Count.

Butterfly and dragonfly surveys are carried out in temperate months (April-October), normally on Friday mornings, at one of four sites around Occoquan Bay, all within the 15-mile diameter circle established for the annual North American Butterfly Association's Annual Count.

Butterfly and dragonfly surveys are carried out in temperate months (April-October), normally on Friday mornings, at one of four sites around Occoquan Bay, all within the 15-mile diameter circle established for the annual North American Butterfly Association's Annual Count.

Many know Northern Virginia for its economic dynamism, cultural development and ever-changing landscape.  Less well known are the places sheltering remnants of an earlier, vital, natural history.  If you would like to discover native birds, other fauna and flora — in the company of dedicated citizen scientists — then consider joining one or more of these continuing natural resource surveys.

Join NVBA bird guides for an outing at this restored grassland habitat on World Migratory Bird Day.

Join us for the Annual Migratory Bird Count at Occoquan Bay NWR.

Butterfly and dragonfly surveys are carried out in temperate months (April-October), normally on Friday mornings, at one of four sites around Occoquan Bay, all within the 15-mile diameter circle established for the annual North American Butterfly Association's Annual Count.

Butterfly and dragonfly surveys are carried out in temperate months (April-October), normally on Friday mornings, at one of four sites around Occoquan Bay, all within the 15-mile diameter circle established for the annual North American Butterfly Association's Annual Count.

Join the Piedmont Environmental Council and the Northern Virginia Bird Alliance for a guided bird outing through the Roundabout Meadows pastures and meadows.

Many know Northern Virginia for its economic dynamism, cultural development and ever-changing landscape.  Less well known are the places sheltering remnants of an earlier, vital, natural history.  If you would like to discover native birds, other fauna and flora — in the company of dedicated citizen scientists — then consider joining one or more of these continuing natural resource surveys.

Join us in celebrating the 2026 iNaturalist City Nature Challenge with a bird outing on Theodore Roosevelt Island in Washington, D.C. with Ana Ka’ahanui and DC Climate Week.

Join us in celebrating the 2026 iNaturalist City Nature Challenge with a bird outing led by Matt Felperin at Algonkian Regional Park.

Join us in celebrating the 2026 iNaturalist City Nature Challenge with an insect walk led by Judy Gallagher at Occoquan Bay National Wildlife Refuge.

Join NVBA and our partners at the National Park Service Potomac Heritage National Scenic Trail and the Bureau of Land Management for a bird outing to celebrate National Go Birding Day!

NVBA partners with Mason Neck State Park to host regular bird outings every fourth Saturday of the month from 8:00–10:00 AM.

Butterfly and dragonfly surveys are carried out in temperate months (April-October), normally on Friday mornings, at one of four sites around Occoquan Bay, all within the 15-mile diameter circle established for the annual North American Butterfly Association's Annual Count.

Butterfly and dragonfly surveys are carried out in temperate months (April-October), normally on Friday mornings, at one of four sites around Occoquan Bay, all within the 15-mile diameter circle established for the annual North American Butterfly Association's Annual Count.

Butterfly and dragonfly surveys are carried out in temperate months (April-October), normally on Friday mornings, at one of four sites around Occoquan Bay, all within the 15-mile diameter circle established for the annual North American Butterfly Association's Annual Count.

Many know Northern Virginia for its economic dynamism, cultural development and ever-changing landscape.  Less well known are the places sheltering remnants of an earlier, vital, natural history.  If you would like to discover native birds, other fauna and flora — in the company of dedicated citizen scientists — then consider joining one or more of these continuing natural resource surveys.

Want to learn more about bird rehabilitation? Join NVBA and A.E.R.O. for a morning full of educational talks on the subject!

Join NVBA bird guide Luke and our partners at Fairfax Public Library System for a beginner-friendly bird outing at Frying Pan Park!

Butterfly and dragonfly surveys are carried out in temperate months (April-October), normally on Friday mornings, at one of four sites around Occoquan Bay, all within the 15-mile diameter circle established for the annual North American Butterfly Association's Annual Count.