Hi All: Two had numbered color bands. The colors are on the bird banding lab website (http://www.pwrc.usgs.gov/BBL/homepage/blbrprot.htm) if you see any and want to know their origin. This is the largest flock I've seen in 20 years on Vashon.
Gary Shugart, Vashon Island and Slater Museum, U. Puget Sound Tacoma