What an exciting spot! I stopped by around 1 or so and DID see the Rough-Legged Hawk sitting in the top pine tree to the left side of the field. Got good looks through my scope. I thought her eyes looked light colored, and looking in sibleys wondered if it could be a first year? Didn't get a good look at her breast because she was sitting back-to, and when she finally flew, it was away from my direction.
I didn't see a Merlin, but there was a male American Kestrel bobbing his tail in the top of a smaller bare tree.. We (Martha...? I can't remember your last name!) also saw what we believe was a lone Snow Goose fly across the field and then away, which was pretty cool, though I was worried about what it was doing all by itself. Small groups of Canada Geese flying by also..
MAY have heard a Kildeer, but not sure that's what it was. Wasn't the full "Kill-Deer" cry. It might be the sound one of the Hawks can make, I'm not sure, but I'd be interested to hear if anyone else hears one out there!