Canary in the coal mine. Meaning. Someone/something that is an early warning of danger. Examples.
Where does canary in the coal mine come from?
An allusion to caged canaries (birds) that miners would carry down into the mine tunnels with them. If dangerous gases such as carbon monoxide collected in the mine, the gases would kill the canary before killing the miners, thus providing a warning to exit the tunnels immediately.
Do they still use canaries in coal mines?
It’s hard to believe that canaries were still used in coal mines in recent decades to detect harmful underground gases. On December 30, 1986, that was largely put to rest. More than 200 birds were phased out of service as modern carbon monoxide detectors were phased in.
What does you’re my canary mean?
n. someone acting as an informer or decoy for the police.
Which country did he describe as a canary in the coal mine?
The use of miners’ canaries in British mines was phased out in 1986. The phrase “canary in a coal mine” is frequently used to refer to a person or thing which serves as an early warning of a coming crisis.
Why do Canaries die in coal mines?
Canaries were iconically used in coal mines to detect the presence of carbon monoxide. The bird’s rapid breathing rate, small size, and high metabolism, compared to the miners, led birds in dangerous mines to succumb before the miners, thereby giving them time to take action.
How many canaries died in coal mines?
Three Billion Canaries in the Coal Mine. What does it mean for us that birds are dying?
Why did they have canaries in mines?
On this day in 1986, a mining tradition dating back to 1911 ended: the use of canaries in coal mines to detect carbon monoxide and other toxic gases before they hurt humans. … If the animal became ill or died, that would give miners a warning to evacuate. Why was a canary Haldane’s suggested solution?
Who sings canary in a coal mine?
What does it mean to sing like a canary?
In English, if you sing like a canary, you are reporting on someone to high-level officials, like the police. Let’s say police officers question someone suspected of a crime.
What does a canary mean?
canary(Noun) An informer or snitch; a squealer. Etymology: From the Latin Canariae insulae, “Canary Islands” (Spanish “Islas Canarias”); from the largest island Insula Canaria (“Dog Island” or “Canine Island”), named for its dogs, from canarius, “canine”, from canis, dog.
What is a canary slang?
(informal) A female singer, soprano, a coloratura singer. (slang) An informer or snitch; a squealer. (slang) A (usually yellow) capsule of the short-acting barbiturate pentobarbital/pentobarbitone (Nembutal). (Australia, informal) A yellow sticker of unroadworthiness.
What is the meaning of canaries?
1. A small finch (Serinus canaria) native to the Canary Islands that is greenish to yellow and has long been bred as a cage bird. 2.
Can a canary survive in the wild?
This is not a wild bird and will NOT be able to survive outside as those who were raised in the wild can. NATIVE TO: The Canary Islands, off the northwest coast of Africa. … Mature male canaries do usually sing, which will usually reveal the sex of the bird. Females have a simple, sweet “cheep” sound.
Where does the Canary de Mata live?
They reside primarily in the Canary Islands, Madeira, and the Azores. They live throughout much of the islands, however, these birds are rare on the islands of Fuerteventura and Lanzarote. Humans have also introduced this species to the Hawaiian Islands on the Midway Atoll.
Can a female canary sing?
Normally, female canaries don’t sing, but with a few tweaks, the females’ brain structure can be altered in a way that lets them burst into song. Their singing can even be considered sexy. … Hartog established that BDNF could get the females to sing, even if the female birds had not been treated with testosterone.