Yep... I believe so.Here's an article that popped up when I did a quick search. I was thinking there was a year or two in the 90's when I was hunting a bunch and birds were everywhere in Iowa (no longer).
https://books.google.com/books?id=Z...sted more pheasants than south dakota&f=false
Hey, thanks, I thought that might be the case!
1995 1.44 million birds. Iowa
1995 1.29 million birds South Dakota