Tom Miko's third recording of the wren at La Mirada Community Park includes a song (https://macaulaylibrary.org/asset/539043461) that, when compared to the sonograms on Nathan Pieplow's blog from 2009 (http://earbirding.com/blog/archives/826) is a very good match for Winter Wren. So nice find Jonathan and good job Tom on recording the song.