I was just playing the odds in order to have some fun, relying on the treetop perching habits of this beautiful raptor to prove me right. As we admired the stunning raptor, I of course came clean and divulged why my guess was what it was. And why such knowledge can make for a good party trick when with newer birders.
The bird in this photo is a light morph individual. There is also a striking dark morph of the Rough-legged Hawk that is mostly black. The color forms of Rough-legged Hawks - and other animals with distinct morphs such as Snow Geese - are often mistakenly referred to as "phases", as in "Did you see that beautiful dark phase Rough-legged Hawk?". Sorry to mount a nerdish, mildly pedantic soap box, but such forms are decidedly not phases and shouldn't be referred to as such. A phase is, according to Webster's: "a particular appearance or state in a regularly recurring cycle of changes".
The appearance of the moon at any given time is a phase. It'll change appearance in successive days, but it is still the moon, albeit with very different looks as it progresses through its phases.
Rough-legged Hawks do not change form. They are either light morphs (which most birds that appear in Ohio are), or they are dark morphs. If the bird changed appearance from a light type to a dark type over its development, then one might say that the first stage of color form was a phase. But since they don't, one cannot accurately apply the term phase in this case. Again, from Webster, the definition of morph, as the term relates to biology: "a phenotypic variant of a species". And that's what light and dark morphs of the Rough-legged Hawk are - variants of the same species, but stable variants that do not change appearance over time, or phase into other plumages.
Enough of that. A person could easily be bowled over by the dashing good looks of a Rough-legged Hawk even if they didn't know its name, let alone whether the bird should be correctly termed a phase or morph. Also of interest is that the closest breeding Rough-legged Hawks to Ohio are about 1,200 miles to the north. To these hardy raptors of the far north, wintering in Ohio is their Floridian vacation.