Went to Paletta park in Burlington this morning to look for the Worm-eating warbler again and finally found it! Also saw a White-eyed vireo in close and many other migrants.
Directions as posted before: exit the QEW Highway at Appleby Line. Drive south towards the lake to Lakeshore Road. Turn right (west) on Lakeshore Road and drive a short distance to Shoreacres Road (on your right). The park is across the street on the south side.
Have more photos of both birds plus more migrants at
http://www.flickr.com/photos/andrew-don/