Elias - Go to the Rosetta Raptor Watch this fall for the Northern Goshawk! I think they are usually seen end of October/early November. You might be able to see greater numbers at the High Park Watch but you'll get closer views at Rosetta. The Purple Finches seemed to pass through so fast this year; I only saw them once back in April. I usually see quite a few at the cottage though. If you have a chance to head North this summer be sure to check the local feeders! (Note: my cottage is on French River which is almost to Sudbury - I'm not sure if Muskoka or the Kawartha's are far enough north.)
Reuven & Thouc - Wow those are fantastic Ontario Lists! My Life list doesn't even come close to either! Reuven, best of luck with the 9 and please let us know when you hit 300, or post about it on that terrific blog of yours.
-kris
p.s. In answer to an above question, Downsview Park was full of babies! Goslings, Ducklings, tiny Killdeer, Robin fledglings and Bunnies! Otherwise pretty quiet, just Spotties, Orioles, Warbling Vireos and Goldfinch. My highlight was a Willow Flycatcher pair at a nest.