Flycatchers are a tricky bunch to ID. I started memorizing each of their calls and that has made all the difference in finding a few different types around Woodstock. Least Flycatchers seem to be the most common type around here. I'm hoping to find a Willow, Great Crested and Yellow-bellied this year and if I can find each one in Carleton County, that would be even better.
Right now I can find Eastern Kingbirds in a few different spots without too much trouble. I've never seen one over on Prince Edward Island however. Apparently they aren't nearly as common compared to here in New Brunswick. It is really interesting that you can drive just a few hours away and see so many different (to you) birds.