 A longtime D.C. restaurant is closing and another one will replace it later this summer. Some changes are coming to the 14th Street and the restaurant scene there. Neighborhood Restaurant Group and Chef Hamilton Johnson announced that they're taking over the space now occupied by Birch and Barley at 1337 14th Street, which is ending its 15-year run July the 13th. A new restaurant called Mallard will open at that location.