Birdman Anthology (Japanese: 鳥人大系, Hepburn: Chōjin Taikei) is a manga by Osamu Tezuka that began serialization in 1971.

In the future, birds have taken over Earth and replaced human kind as the dominant species.

With the assistance of bird-like aliens, the birds of Earth gained increased intelligence in 1975 and began to attack humans.

Now humans are treated as livestock by the birds who have moved on to create their own society with laws, currency, countries, and class systems.

The manga is currently published in English by Ablaze Books under the title, 'Tomorrow the Birds'.