I'm not clear if you will be here on Saturday October 4, but if so, there is a guided bird walk taking place that morning which might be a helpful way to track down the YCNH. (It does quite often like to perch high and behind leaves during the day.)
From the ONTBIRD alert list:
Fellow bird nuts, there is a walk this Saturday, October 4th at Colonel Samuel
Smith Park at the foot of Kipling St. in south Etobicoke (Toronto). Meet at
the southernmost parking lot. The walk is organised by our local conservation
group CCFEW (Citizens Concerned about the Future of the Etobicoke Waterfront).
This is the link to the CCFEW website:
http://www.ccfew.org/html/bird_walks.html where all future walks will be
posted. We use local birders as our guides. This next walk will be led by
yours truly.
Walks are held almost monthly on Saturdays and last about 2hrs. The
long-staying Yellow-crowned Night-Heron is still being reported from Colonel
Sam last I heard.
Please note that I have discussed this post with Mark Cranford, Ontbirds
Coordinator.
Andrew Keaveney
Cell: 647-383-8894