Doesn't look like a RIR. A RIR wouldn't have those stray differently-colored feathers, they'd be smooth red all over--even a hatchery quality RIR. My best guess would be New Hampshire Red--IME, hatchery quality NHR are more likely to have those stray feathers. What color was the bird as a chick, red or yellowish?
I believe that Meyer sends free pullets with layer hen orders, as that would be in the spirit of the "meal maker" program--to have people donate eggs. At least that's what they've told me in the past. But a shot showing its face would be nice.