I would like to add that this is just how I do it,there are a lot of different way to get to the same destination as it applies to getting a quality mount.
Relief holes are cut into the head to allow for the ear canals of the plastic ear liner.This is where a lot of taxidermists end up with ear butts that are "too long" or too far away from the skull.....
And eye sockets altered to allow for the chosen eye rotation.One of my personal pet peeves with mounts,if it has bad eyes,it'll never be a good mount!! But we'll get further into that later on......
Nose pad and nostrils,and eye skin get thinned further with a scalpel......
Now it's time for the actual mounting to start.Plastic earliners get trimmed for size and roughed up for glue adhesion.....
then glue is applied,and they're inserted into the ear skin......
Skin is "taxied" around to get it where it needs to be......
Clay is added to the base of the liner to be later formed into the ear butt musculature.....