I saw one last year,
(only the second one I've seen in my life), while deer hunting down south of Weatherford.
Thankfully he was just a bit more than 100 yards away, but I watched him for 10 minutes thru my scope.
I kept contemplating wether to shoot it or not, I didn't, & got my deer about 45 minutes later.
They've been in SW Oklahoma for at least 30 years. I didn't see one until about fifteen years ago, but I'd seen quills in several dog snouts many years before that.