To end the RUFU thread so far, all the September Tweeters related reports that I can find are:

Walla Walla - Benington Lake, at least one bird at a feeder, 09/19/13
Yakima, one feeding at ornamental plantings in garden, cannot find exact date
Scatter Creek, two birds at feeder, one adult male, 09/26/13. One bird on-going.
Redmond, one female/ imm. at feeder, 09/27/13
Burien, one female/imm at "butterfly bush" in garden, 09/3013

These are basic records, not evidence of any theory.

David Hutchinson,
Flora & Fauna: Nature Books
Discovery Gardens: Native Plants
Forest Steward,Discovery Park


3212 W.Government Way
Seattle,WA.98199
http://www.ffbooks.net/
206-623-4727