The Monster in Mask Valley
Kimba discovers Colosso, the last survivor of a race of giant birds, after rescuing Charlie and Harley Cheetah from Petrified Valley. Colosso is invited to Kimba's jungle but can't fit in.
Aired 08/06/1966EP 36 - The Monster in Mask Valley

1965
Kimba the White Lion
The series follows the adventures Leo, a young lion cub. Leo becomes king of the jungle when his father, the previous king of the jungle is killed by a human hunter.
(Source: Anime News Network)