This afternoon around 1PM, I found an American Tree Sparrow on the east-west running dike at Spencer Island (the dike that goes over the tidal wetlands). The bird was just east of the water birch stand. The ATSP was pretty tame, feeding in the middle of the gravel path. It flew into the brambles a couple of times, but would come back out soon after.
Picture and complete bird report can be found on eBird: http://ebird.org/ebird/view/checklist/S32624916

Tiffany Linbo
Mountlake Terrace, WA