Why Am I Afraid Of Taxidermy Birds?

Supposedly when i was young, maybe 2 or 3 years old, i was scared by a taxidermy pheasant. Ever since that incident i have been permanently scared of taxidermy birds, and i am now 16 years old. I don't know what it is about them that makes me frightened? I dont have thoughts of them attacking me, like most people suggest, i just get very nervous and frightened when i see them and are near them. And its just taxidermy birds, no other animal. So if you would please, help me figure out what it is that is frightening about them. thank you!