I was wondering if there is anything specifically written or a video dealing directly with upland game? Specifically ruffed, spruce, sharptails or ptarmigan

Go to Wasco taxidermy supply and see if they have many videos on how to mount Birds of all types.
Or van Dykes Taxidermy supply.
You can go to google and just type in the supplier's anmes.
Or go to www.taxidermy.net and go to the forums and click on suppliers.