Indiana has no elk.
When they get done with elk what about buffalo. They used to live here as well as the rest of mid west. Sounds like a great idea. ( sarcasm)
The upland bird loss in population from what it was in the 40s and 50s is due to changing farming practices. Went from small family farms with small equipment and fields with grown up fence rolls in between. To large farms big equipment that requires big fields. They ripen out the fence lines and have fields so large it a rabbit needs to pack its lunch to get to the other side. Also protection on Hawks. Didn't help.
I still think that in the 1950's and 60's was when hunting clubs leased farms to hunt.
Quail and pheasant were a favorite hunt for everyone.
We could hunt both in a day on our farm and neighboring farms.
Got to where too many hunted across lines and soon the wild population couldn't provide enough birds to hunt.
So game clubs raised pheasants for release to hunt.
Pen raised birds needed medication to prevent the crowded birds from many diseases that fowl get when cooped up in small areas.
So those pheasants were medicated but still carried diseases into the wild population.
Soon you couldn't find a wild bird anywhere.
They blame the blizzard of 1978 for the demise of the wild birds.
I truly believe diseased birds released for hunting killed off the wild population.
Chickens are fed feed with medication in it.
I know of many Amish that tried to raise quail, that died within weeks.
Did a search, and found that chickens get a disease the medicated feed prevents for killing them.
They still carry the disease, and quail die from that disease.
Just what I've read and researched over the years.