If you have ever had fish, you know that they need a certain amount of space per fish or they are not going to thrive, and may even die very easily. The same can be said for birds. When you choose among parrot bird cages, you have to know that they have enough space to keep them happy and healthy. If not, your bird is not going to do well. When you go to look at parrot bird cages, what you have to do is talk to someone in the store (or a representative at a web site) to be sure you are getting what you need. If the person with which you are speaking does not seem to understand what you are asking, you need to go somewhere else. Some really care about the health of your pet and some just want to make a sale.