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You should never have to, give him lots of ways to keep it trimmed himself like cuttle bones and gritty perches and you will never need to do anything.
Since a cockatiel's (hands) are behind it's back the cockatiel uses it's feet to wobble around perches and ect. Cockatiels can also use their wings for balance if they are about to lean or fall. It's like if you are walking on something skinny such as a rope or a skinny piece of ceament and you put your hands out by your sides to keep your balance, well the cockatiel does the same thing!
Please see the Related Links for websites that should provide you with plenty of information about caring for pet cockatiels. You should make sure that you have the space and the time before adopting any pet. You should visit your local library and find relatively recent books about caring for cockatiels. They too are a very good resource.
0.028 hectares = 11.07 perches.
40 perches in one rood.
Parrots use their feet like we use our hands, for grabbing things, holding food, gripping perches/trees
One acre is 160 perches.
79.6 perches equates to 2,013.3 square meters.
In the wild they perch in tress or on clay cliffs. In captivity they will sit on anything you give them from sand perches, rope perches, wood perches or metal perches. As well as couches, counters, chairs, beds and anything they can find including curtain rods!
What is perches
Perches.
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