Coming back from some shopping on Queen street west this afternoon I had eight warbler species (Cape May, Black-throated Blue, Red-rumped, Blackburnian, Parula, Magnolia, Black-throated Green, Chestnut-sided) and one Red-eyed Vireo in one single tree on Belwoods ave., just north of Queen Street. I suppose there must have been a fall out over Toronto today. It would be interesting to hear of any reports from Toronto Island.
Edit. Added three more species.