Horizon
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
Season 18 · Episode 20 ·
Butterflies or Barley?
Horizon reports on the conflict between the farmers and the conservationists over the English countryside.
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Episode 20 of season 18 of Horizon: “Butterflies or Barley?”. Aired 1981-10-26. Watch it online free on ZapFlix.