There are Yellow-rumped Warblers EVERYWHERE right now. Every time I've gone birding in the past two weeks, I've seen at least one. There are certainly more males around, but I did see a couple of females over the weekend.
White-crowned Sparrows are passing through the province right now. I haven't had any in my yard yet (usually do), but I did see 6 in Temperance Vale a few days ago. The "bicycle helmet" crown separates it from a White-throated Sparrow.