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The Canary (Serinus canaria) is a small songbird which is a member of the finch family.
This bird is native to Madeira and the Canary Islands; it was named for the latter, although the name of the island group comes from the Latin word for dog, "cannariae," given by the Romans in reference to the numerous wild dogs that lived there.
Its habitat is semi-open areas such as orchards and copses, where it nests in bushes or trees.
The wild bird is yellow-green, with streaking on its back. At 13cm length, it is larger, longer and less contrasted than its relative the Serin, and has more grey and brown in its plumage.
The song is a silvery twittering like the Goldfinch.
Canaries are a popular cagebird, and they have been bred in many different shades. Modern pet canaries vary in colour from virtually white through pale cream, gold, bright yellow, orange to an orangy pink.
The keeping of Canaries for their appearance and song is a tradition that dates back centuries.
Canaries were once regularly used in coal mining as an early warning system. Toxic gases such as carbon monoxide and methane in the mine would kill the bird before affecting the miners. Because canaries tend to sing much of the time, they provided both a visual and audible cue in this respect. The use of canaries in British mines was phased out as recently as 1986.
Canaries are often depicted in cartoons from the middle 20th century as being harassed by domestic cats; the most famous cartoon canary is Warner Brothers' "Tweety Bird".
In computing, canaries or canary words are dummy data fields used in the implemention of stack-smashing protection. The name is an allusion to the use of canaries as warning devices in coal-mines.
Photos
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|  Canary, as depicted in the 1851 Illustrated London Reading Book | 
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