Tyler, did you hunt those Idaho birds with Mark? He helped me get my first bird near Southwick Idaho, 18 years ago from yesterday.
I believe it was one of the rare easterns that had been transplanted into the area, or was of a direct lineage of them. Tail feathers and the bases were dark brown and his spurs were close to 2 inches long. Best I could tell, he was a purebred eastern, but I'll bet they're so crossbred these days that a bird like him doesn't exist there anymore, unless they've transplanted more eastern into the area.
