What's this one?? A mini-Hawk?

by Fred Overstreet
(Oklahoma)

I found this one, seems to be nested on the ground, has one baby, acts like all ground nesters when approached ie: flutters and act wounded to attract predators away from the nest (and is quite accomplished at it, fooled my lab Duncan on first discovery. I didn't take him back to get these pics though).

Interestingly, when she flies she can hover like a hummingbird and raise and lower her height while hovering, also can move sideways.
Never seen one like this before and was curious about it.... Thanks

BTW I found it in the edge of the woods in NW Arkansas