I Really Believe The Climate Has Alot To Do With It. That And Space. I Have Tried Chukar Twice In As Many Years They Are Absolute Asassins Covered In Feathers. Now I Am Down Here In The Brutal Heat And Humidity, And I Know Chickenwisperer Is In Southern California (another Hot Climate) Granted With Proper Space And Hides It Shouldnet Be A Problem, But 4 Birds In A 20x20x6 Pen? I Think Thats Plenty Of Space. It Was Big Enough That It Took Them At Least 3 Wks To Acclimate To It Before They Started Hunting Each Other Down...