Coyote, fox and the like seem to eliminate them around here. We used to have flocks of them too, in the 70's and that was when our land was all in crops, not nearly as much cover as there is now. Anything that does not roost in trees, seems to not live all that long, though we have grouse and or partridge, I forget which is which, one of these seem to survive, not in great numbers but there are always some around.
The last ones I saw here was 1 male when I was a senior in high school, and somewhere around '01, '02, was eating breakfast, looked out the window and the male dropped in, soon thereafter a female showed up, now a breeding pair, they were around for about 2 years, though the female disappeared first, they both had to be smart to make it that long. They used to come up to the bird feeder, hide under the pines in the yard.
The male was actually incredible, I really enjoyed seeing him, which was quite often. Problem was that darned fox was always on his tail, literally, several times he narrowly escaped as I saw while deer hunting, he used to come down to my stand.
One of the last times I saw this pheasant, I heard him, as if he was calling me or a distress signal. Near my house, was in my yard, so I head over about 100 yards, to where I heard him.
What I saw was just hard to believe at first, I walked smack into a large, very healthy red fox, I mean picture perfect, bigger than any I have ever seen before. He pays no attention to me, is sniffing intently, can't say he saw or smelled me, fox just kept doing what he was doing. I look to my right in the thicket, and there is that pheasant, very very carefully, tip toe'ng away. He blended in with the background, fox could not see him, that fox was so close it would have been an easy handgun shot. That pheasant, escaped right in front of me, slowly, carefully disappeared, fox never figured it out, they both went in opposite directions. Why that bird was making noise, within my earshot, which prompted me to investigate, and witness this situation, I'll never know, fox must have just caught up, coincidence, I knew it was that pheasant when I heard it. Both had to have been released from somewhere nearby, neither of them were dumb, from what I saw, or would expect from ones raised and released. Too bad they don't roost in trees like turkeys, as they survive just fine, I always liked pheasants, even when this one was around doing annoying things, he'd be on my pick up truck tonneau cover making footprints, come up on the front porch, quite the character this bird was.