Birds can drown in small amounts of water. The toilet bowl, uncovered, has been the source of many avian injuries. Birds do like water play, and with supervision, many even enjoy showers with their owners. Bath perfumes and hair spray must be avoided around birds. Chewing is the next big concern with birds.
Most birds chew anything they can get their beaks on.
We must provide safe woods and chew toys to allow this natural, healthy exercise. It is also essential to keep the house clear of dangerous items. Electric cords should be hidden and protected. Avoid poisonous house plants. As you get in the habit of thinking about kinds of things that poison birds, you will automatically avoid the dangers.