Today at lunch, I spoke with Janet Draper, the horticulturalist in charge of the Mary Ripley Garden at the SI. She has been seeing hummingbirds in the garden since last week.  
  While I was chatting with Janet, a female Ruby-throat showed up at the Salvias in the raised bed near the fountain.  Janet tells me she sees the hummingbirds mostly in the Salvias in that bed and near the A&I Building wall on the northwest side of the garden.
   The Mary Ripley Garden is on the Mall, between the Hirshhorn and the (closed) A&I Building,

Jim

Jim Felley
Smithsonian Institution