 Later that year, another huge, penguin-like bird was allegedly seen from an airplane on the banks of the Suwannee River in northern Florida.Cryptozoologist Ivan T. Sanderson declared that the creature was a giant penguin that had somehow been driven away from its natural habitat.On April 11, 1988, "St. Petersburg Times" reporter Jan Kirby revealed that the penguin hoax had been perpetrated by Tony Signorini and Al Williams, a locally known prankster who died in 1969.