Late this afternoon, I saw and heard one on Ashtonbee Rd., west of Warden. There's a bit of scruff bush on the south side behind the Staples back parking lot and it was singing away to beat the band and seemed to be eating some kind of berry. Couldn't get close enough to tell what kind of shrub but there are several bushes there.
None of the calls sounded like mimicry of any bird I've ever heard - nice trills followed by squeaks and gurgles.
Quite the neat experience!
My guide books say they can have quite a range but this seems too far away from Progress to be the same bird.