Mitchell county would definitely be greater PC.
I saw one on opening weekend of pheasant season maybe 15-20 years ago in Gray county. It flushed right in front of me, in range, when there was still an open season in KS. My brain said "hen," so I didn't shoot. Even if I had properly ID'd it, I doubt I would have shot.
A landowner further east and a bit north of there said he had a small flock, and I may have seen one once. It was one of our few snow days in Kansas, and a plum thicket on a pivot corner very close to that landowner was holding pheasants, quail and one bird that very much looked like a PC. I didn't get a good enough look to confirm whether it was a lesser, but it definitely didn't look like a pheasant or quail. This was only maybe 2 years ago.