Howard the Duck appeared in 1973 Marvel Comics called Fear.
Howard the Duck was hatched on Duckworld, a planet in another universe, where intelligent life evolved from waterfowl. Duckworld resembles mankind's Earth in an astounding number of ways, including the fact that ducks speak English. He was the son of a Ronald and Henrietta, a working class catholic couple living in New Stork. He had two siblings Theresa and Orville. As a child, he discovered an amazing potential intellect, however he was continuously bullied by other children as a result. He eventually decided to give up on his studies, wasting his potential. Further details about Howard's past on Duckworld are still unknown. Indeed, there are conflicting accounts as to the circumstances surrounding his disappearance.
Howard vanished from his home world when the power hungry demon Thog the Nether-Spawn used his magic to cause the interdimensional cosmic axis to shift. Howard was dislodged from his home dimension and dropped into the middle of the Florida Everglades on Earth-616 at the site of this world's Nexus of All Realities, a place from which travel to all other dimensions is said to be possible. In an effort to set the cosmic axis right and return home, the reluctant Howard joined with Korrek the barbarian, who also came from another dimension, the young Earth-born sorceress Jennifer Kale, Dakimh the Enchanter, and the Man-Thing. The battle against Thog ended for Howard when he fell off the other-dimensional Stepping Stones of Oblivion.
He landed back on our Earth in the city of Cleveland, Ohio, where he first faced the menace of Garko, the Man-Frog.