Mining foreman R. Thornburg shows a small cage with a canary used for testing carbon monoxide gas in 1928. George McCaa, U.S. Bureau of Mines Never mind the gas—it was automation that got them in the ...
Following a deadly explosion in a Welsh coal mine in 1896, an engineer called John Haldane invented a type of bird cage that allowed canaries to accompany miners into the depths. The small songbirds ...
Sue Sausser woke and found feathers everywhere. Her bird cage was open — one canary was dead, the other terrified. A brown owl had flown into the 10th story apartment through the open balcony door.
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