Need ID help with this very dark Hawk please

[bronco]

Not very sharp as they were taken not long after sun up on a cloudy morning.
Last image is the only one that shows the back - does not seem to have a white rump.
As always your help is appreciated.

[Leslie]

Well, I'm hardly an expert, just first.

This looks to me like the dark phase of a rough-legged hawk.
"The black phase lacks extensive white on the tail, but shows much white on the underwing flight feathers."
"Typical birds show...a black patch at the 'wrist' of the underwing."
(Both my old Peterson)

Was this a large bird? Where did you see it--no details please if bird is rare--but it's "a big hawk of open country"  so some habitat info would be nice.

Now the knowledgeable board members can chime in.

[Reuven_M]

Yes, a dark-morph Rough-leg. Not uncommon this time of year in open areas

[Paul O'Toole]

I have seen them on Amherst  Island but not that close, good look for sure.

[bronco]

Thank you Leslie, Reuven and Paul for your information.

Bird was found in Innisfil. The area is best described as farm country - generally flat - with occasional gentle rising and falling terrain. Pretty much what you find anywhere north of Toronto.