ToH XIX gave us "It's the Grand Pumpkin, Milhouse", which sees Milhouse bring a giant pumpkin headed creature to life who seeks revenge for pumpkin atrocities. To save them, Lisa gets Milhouse to use his power of belief to conjure this kind of bird, who manages to kill the Grand Pumpkin, only to go on a rampage of his own. What bird did Milhouse conjure up?
(Tom) Turkey