A quick run around the Mall showed me the following:

There was a big fly-in of Field Sparrows overnight, their song can be heard from various locations on the Mall.
Also there are now numbers of Chipping Sparrows around (especially around Constitution Gardens.
There are still a few Juncos and White-throated Sparrows are still here.
Eastern Towhees have returned.

Some other highlights:
   Constitution Gardens:
   The pair of American Wigeons are still in the pond
   A Yellow-bellied Sapsucker

Tidal Basin (yesterday)
  An Osprey
  A Caspian Tern

Today in the Enid Haupt Garden behind the Smithsonian Castle:  heard, but alas not seen:  A Yellow-throated Warbler

Also, I have not seen this reported (but maybe I have not been paying attention):  A pair of Ospreys are back on the nest at the train bridge over the Potomac

Jim

Jim Felley
Smithsonian Institution