Géo Trouvetou
Gyro Gearloose is a tall, anthropomorphic chicken who is a scientist and inventor. He first appeared in the Carl Barks comic "Gladstone's Terrible Secret" ("Walt Disney's Comics and Stories" #140, May 1952), and was the regular lead character in 4-page backup stories in Barks' issues of "Uncle Scrooge", starting with issue #13 (March 1956) and continuing through #41 (March 1963).