....ya, more due to habitat and climate, but if you think shooting the reproducing females helps them, (if it doesn't help, it is hurting) I would disagree.
Then help me understand. Since the very beginning of quail hunting in the United States, it has been legal to take hens or Bobs indiscriminately. Over all those generations of quail hunting in all of the states that had quail, there have been great seasons, good seasons, average seasons, seasons and poor seasons.
What has made the difference between the great vs good vs average vs poor seasons?
Because it SURELY wasn't the taking or not taking of hens.
The complicated story of the once plentiful Northern Bobwhite Quail (Colinus virginianus) and it's decline on the American landscape.
projectupland.com
"
The current bobwhite population has been in a steady decline for decades, but there is still a large population across the United States.
The primary threat to the species—and the likely reason for their decline—is habitat loss (NatureServe 2018). We’ve lost the vast majority of our historic prairies. They’ve either been converted to agricultural crop fields or business and housing developments."
I would suggest the same is true for the decline in the pheasant population.
"WHAT ARE THE EFFECTS OF HUNTING ON HENS?
Few states currently allow legal shooting of wild hen pheasants and
there is little definitive data on how hen hunting affects reproduction. Some biologists have speculated that if more than 25-35 percent of hens were harvested, reproduction would decrease.
The record is ambiguous- controlled hen seasons in Montana, Idaho, California, Iowa and Nebraska apparently did not limit reproduction, but data from Wisconsin, South Dakota and Minnesota indicate the opposite. Due to the ambiguity and
past traditions, we don't hunt hens today."
Now I am NOT advocating for making pheasant hens legal quarry. I'm fine with just shooting cockbirds.
However, I really doubt shooting hens would make much difference in the overall population.
Why? Because, just like with quail, it's NOT the lack of hens that is causing the decline. It's Habitat, Weather, Crop Prices, Land Prices....you get the drift. There's plenty enough pheasant and quail hens to have great seasons. We lack other things.