Townsend's Warbler (Dendroica townsendi)
Above and below: A Townsend's Warbler at Bayside, Assateague Island, Maryland (9/18/2011). Found by Dave Czaplak and Mary Ann Todd on 9/17, this is Maryland's third record, a new species for the Eastern Shore of Maryland, and a first record for Worcester Co. Awesome!
Below: A beautiful Townsend's Warbler along the Lands End Trail, San Francisco (9/23/2010).
Below: Not a Townsend's Warbler - a Black-throated Green Warbler keeping the Townsend's company on Assateague (9/18/2011)