Between Constitution Avenue and Independence Avenue, and the Lincoln Memorial and 17th Street. When to go This area is a migrant trap. The wide area of green space in the middle of an urban city attracts birds moving through the area. Visits in the Spring after South winds and in the Fall after a cold front seem to be most productive.
Some days there is nothing unusual to see.
Frequent visits will be more rewarding than occasional forays. There are several access points. One good point is at 19th Street and Constitution Avenue. Entering here will bring you immediately to a small pond. You can take the trail to the right, which will eventually bring you near the Vietnam Veterans Memorial.