For anyone else with young children (or who loves hand feeding birds) just thought I'd mention the chickadees (and even white-breasted nuthatches) at Lemoine's Point park in Kingston are incredibly tame. There were dozens of birds at various spots, and they were so used to hand feeding, they would perch and pick up 3-4 small sunflower seeds in one visit. (I'm more used to the ones that pick up one seed, fly off to crack it open and eat, then return to pick up the next.)
Given the huge numbers of amblers and dog walkers, we didn't see too many other birds, though, just a downy and a red-breasted nuthatch.