There's a pair of Bald Eagles nesting in the National Arboretum in Washington DC - apparently the first pair since the 1940s. They've been nesting there since 2014 and have successfully reared chicks. A conservation organization, in cooperation with government agencies, has mounted a camera feed by the nest that live streams 24/7. The first egg started hatching last night, and they have second egg that may start hatching this weekend.
http://dceaglecam.eagles.orgEdit: If you're like me and really love this stuff, here are several more camera feeds I'm aware of of formerly endangered birds nesting in major metropolitan areas.
National Aviary Pittsburgh area nest cams - two pairs of Peregrine Falcons nest in Pittsburgh, and there are also feeds of two different pairs of nesting Bald Eagles along the riverbanks in the city.
PA Falcon cam - there's one pair of Peregrine Falcons that nest on the aptly named Rachel Carson building in Harrisburg, PA, which houses the State Department of Environmental Protection.