Although there are many youtube videos of outdoor cockatiels generally it is better to have a harness and a lead (if you want your bird to return!) . These are available from pet stores and from online shopping centres such as eBay. Many people do not like the idea of a chest harness and a lead and some birds do not like them either. It depends on yourself and the bird. Although if you do decide to take the bird out make sure there are no dangerous large birds such as crows around as cockatiels are vulnerable in a flight-restriction device.
Hanging bird baths are safe for birds. Birds like to be above ground as they feel safe and can see all their surroundings.
no
No, Their are no electrical systems that are totally safe. Elections harness electricity not control it.
no they are no safe because if it leakz on a bird then it will die
No
bird seed!!
suck a duck
Depending on if the bird carried diseases, i would get your puppy check out by a vet.
They are exactly what they sound like a sanctuary for birds, where they are safe.
Bird-B-Gone Bird Repellent would be a good option.
There are no candles that are safe for a bird to breathe if it is lit and burning. If the candle is unlit then is is ok. So if you are going to have candles going it would be best for your bird if it was kept in a different room. Or if it is neer the candles make it out in an open, ventilated area.