In the mine, a canary’s collapse let workers know there was poisonous gas in the air and gave them some warning time to evacuate. But come 1981, the British government was planning the birds’ ...

Another early method used to detect gases such as methane or carbon monoxide or a lack of oxygen was the use of birds. Stories of the use of canaries in the mines have been passed down from ...

There is an association in Philadelphia, composed of about thirty Germans, who aim at improving the breed of canary birds, and last month they published their thirteenth annual report. From that ...