Did they hatch?
I haven't tried hatching shipped pheasant eggs, but have done other birds (mostly ducks, some chickens and geese). My theory is that is really depends on the route the eggs take. Even when they look to be packed well and arrive undamaged, some just don't do well. I've come to this conclusion as a seller, too. I used to sell Sebastopol and American goose and Ancona duck eggs. I had excellent hatch rates at home and with local pickup, but mixed results when they were shipped. I packed them well and never had anyone say that there was shipping damage, but some people had great hatches and others were terrible. This is why I quit shipping eggs. No matter how many times you say it, some people still don't get how much of a risk it is.