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BBC Archive 1985: Coal mine canaries phased out
The government announced plans to phase out canary birds in mining pits on 30 December 1986.
↗ https://www.bbc.co.uk/videos/ce96eeqpxkkoThe government announced plans to phase out canary birds in mining pits on 30 December 1986.
↗ https://www.bbc.co.uk/videos/ce96eeqpxkko