Parakeets.
Its just something about their heads... their little eyes.... big heads... the way they look at you with those silly little beaks *shudder* I can't like them.
Also, albino seals. Saw a picture of one in a book once. I have never seen anything so scary... even those prickly deep sea fish with all the teeth (though they come in a close second).
But I am proud to have recovered from arachniphobia thanks to a pink toed tarantula who never took the opportunity to frighten me during the year I was forced to care for it or watch it die (I love all animals too much to let anything suffer, even if I find its existance horrifying!)