The canary birds are easy to take care of and they don't need much space to remain active and healthy. A canary is fully dependent on you for its care and can live from ten to fourteen years if you take good care of it. General care of canaries is pretty straightforward.
      Your canary can live a healthy, active and productive life if you provide:

a well balanced diet
proper hygiene to prevent diseases
enough room to fly
a safe, lighted environment

Diet
     Canaries are extremely easy to feed. Canaries need a balanced diet of protein, carbohydrates, fats, vitamins and minerals. Seed is a staple diet of canaries. Today, many seed manufacturers produce ready canary mixtures. These mixtures usually contain canary seed, rape, hemp, niger and flaxseed. I agree that this diet is excellent, but I'm used to making my own mixture of seeds that contains 35% rape, 35% canary seed, 10% oat groats, 10% white millet, 5% flaxseed and 5% niger. I provide 1tsp of this mixture daily.
     Like most other cage-birds, the canary requires far more than just seed alone. Fresh greens (lettuce, spinach, or broccoli), carrots and fruits (apple, pear or strawberry) add an interesting change to the seed diet. I offer fresh greens or fruits daily. Once a week I provide 1 tsp. of egg food (a crushed boiled egg mixed with wheat bread, grated carrot and poppy seed).
     Additional protein is required during the breeding season. That time I increase the amount of canary seed in the mixture and provide egg food 2 - 3 times a week. Sprouted seed may also be used as a source of protein and energy for breeding birds.
     Cage-bird grit, cuttlefish bone and an egg's shell should be available at all times.
     Drinking water should be available at all times too and be changed daily. If a canary is left without water for more than sixteen hours he may not survive. I suggest to provide canaries with filtered drinking water or spring water.

Cages
     Canaries need to be kept in a cage large enough for limited flight space and have at least two perches. An ideal cage for training measures 15 inches long, 10 inches high, and 8 inches wide. A rectangular cage is preferred because it gives the canary more space for flying. Round cages should never be used. Perches can be made from different materials, but I prefer perchers from soft wood. Females, molting birds, and young birds until they finish babies' molt should be kept in the flight cages. I have the flights with measures 40"x20"x18".

Health and Hygiene
     Cages must be kept clean. The cleaning of the cage should commence once every week. It is important that the bird's food and water vessels should be clean at all times. Wash or scrape the perches on a regular basis, at least once a week. At least twice a week provide a bath for your canary. Remember bathing and drinking water is interchangeable to a bird - so both must be equally clean for drinking.

Environment
     Place the cage in an area that has plenty of light. You can read about light restriction in Training section. Do not place the cage in direct sunlight or close to a drafty window. Direct sunlight can kill your bird or a cold stream of air will cause your bird to go into a molt. Canaries are very sensitive to gases and other toxins. Be careful to use air fresheners, deodorizers, perfumes, and other such volatiles in their presence. The kitchen is not a good place to keep them.