The American Buffalo isthe biography of the shaggy bovid which has been in production for four years.

It was produced by Burnss longtime colleague Julie Dunfey.

Watch on Deadline

Ahead ofThe American Buffalos fall premiere, PBS announced two documentaries airing this spring.

Ken Burn, American Buffalo

Getty

Weathering The Future, premiering Wednesday, April 12 at 9 p.m.

ET, will examine the dramatic ways in which our weather is changing.

The film examines the problem and identifies the most likely real-world technologies that could be up to the task.

WGA West building in Hollywood