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The possessive noun for the singular word canary is canary's, e.g. "The canary's seed dish".
The possessive plural form for many canaries would be canaries', e.g. "The canaries' seed dishes".
canaries do have feathers and they have lots of different colors canaries are a type of a bird
Male canaries sing beautifully
are canaries beautiful singers
No, Canaries are not sensitive to cold weather.