By old, this means more than a few years. The ideal age for training and bonding would be anywhere between two to seven months, but don’t fret if your parakeet is 3 years or maybe even more, it just takes longer to train and work.
Chances are, when you spend at least ten minutes with your parakeet, it’ll potty at least once in that time frame. They do potty very often. Younger birds potty more frequently than older birds. Parakeets also potty after waking up and after eating.
You will need to hand train them before you move them places. If they are not trained, they shouldn’t be out of their cage in the first place.
Make the phrase short so your parakeet will remember it better. Do this every time your parakeet shows the sign. Be aware they may not distinguish between certain objects. For instance, if you are asking them to potty on newspaper, it does not know whether you have read it or not. Be careful. A way to avoid this is to simply take paper plates that you need to a different room or put the unread newspaper in an area where your parakeet cannot see. Or, you could tell them to potty in their cage.
Try to train them whenever they are playing outside of their cage, if possible. They should always be supervised when they’re outside, so you’ll be near them anyway!
However, potty training is a bit more difficult then teaching them to step up or step down. Be patient.