For centuries, miners took canaries into the shafts to warn them of potential disasters.
en.wikipedia.org Other such birds at the gardens include finches, canaries, parakeets, a white-cheeked turaco and more.
en.wikipedia.org Not only dogs and cats, but also pet monkeys, tortoises, otters, rabbits, squirrels and songbirds such as canaries, nightingales, goldfinches, larks, linnets, parrots, magpies and jackdaws.
en.wikipedia.org Well into the 20th century, coal miners brought canaries into coal mines as an early-warning signal for toxic gases, primarily carbon monoxide.
en.wikipedia.org