Event

Filtering by: Event

Feb
25
2:00 PM14:00

Friends of Dyke Marsh Program – Evolution’s Subtle Signs in Marsh Wrens

On February 25, 2018, Dr. Sarah Luttrell will talk about her work on evolution and speciation in the marsh wren (Cistothorus palustris).  Dr. Luttrell studies how evolution works by studying subspecies of birds. She will examine how comparing multiple traits like plumage color, size and shape, vocal behavior and genetics in marsh wrens has revealed an exciting pattern of evolution in this bird.

Read More→

View Event →
Feb
3
to Feb 4

Winter Waterfowl Count

The ASNV Winter Waterfowl Count will be conducted Saturday and Sunday, February 3 & 4, 2018. Volunteer teams survey the Potomac River from Algonkian Regional Park in Loudoun County south to Quantico Marine Base in Prince William County. Several important inland ponds, lakes, and marshes are also surveyed. 

Read More→

View Event →
Jan
18
6:30 PM18:30

Living in the Anthropocene: Earth in the Age of Humans

Interested in the unprecedented impacts humans are having on the natural world?  Please join Arlingtonians for a Clean Environment (ACE) for a free talk with the co-editor of “Living in the Anthropocene: Earth in the Age of Humans,” John Kress, curator of botany at the Smithsonian National Museum of Natural History. 

Read More→

View Event →
Dec
17
7:00 AM07:00

Manassas-Bull Run Christmas Bird Count

It’s time to sign up for the 36th Annual Manassas-Bull Run Christmas Bird Count!  Birders of all skill levels are needed in the field and as feeder watchers. The count circle comprises Centreville and includes Manassas Battlefield, parts of Bull Run Regional Park, undeveloped areas south of Dulles Airport, as well as many stream valley parks and locations from Clifton to west of Fairfax City.

Read More→

View Event →
Oct
22
3:00 PM15:00

October Audubon Afternoon

Vulture: The Private Life of an Unloved Bird

Just in time for Halloween!  Vultures are often overlooked, underappreciated, and unloved, despite the vital role they play healthy ecosystems. Worldwide, vultures are more likely to be threatened or endangered than any other group of raptor, but in the United States turkey and black vultures may be increasing in number.

Read More→

View Event →
September Audubon Afternoon
Sep
10
3:00 PM15:00

September Audubon Afternoon

Challenges of Bird Illustration - John Anderton

Local artist John Anderton shares original artwork and discusses the diverse challenges of bird illustration, both within a historical perspective and with reference to his current project with the Smithsonian Institution’s Migratory Bird Center.

Read More→

View Event →