Bird Cages and why birds sing
We Know Why the Appropriately Caged Bird Sings
Rescue groups like F.A.R. have pretty much seen it all when it comes to the mishandling of pets. We all know about the horrifying cases of abuse and neglect that make the local newspapers and reality shows but those cases are, fortunately, not too common. Yes, we've all seen pet owners who are shockingly unconcerned with their animals' welfare, but simple ignorance is a much more common problem when it comes to the proper treatment of pet companions.
We have yet to meet anyone so foolish as to not keep their feathered friends in bird cages most of the time. Still, somewhere there is someone who believes that letting their bird roam the house is appropriate. Whether your caring for a bird, a dog, or any other pet, a key part of the appropriate care of that pet is keeping it properly confined. They are domesticated animals who cannot protect themselves if allowed to roam.
And, like keeping a dog on a leash, keeping your bird in the right kind of safely enclosed habitat is a very good example of the kind of proper pet care we're talking about. Just as it's terribly dangerous and irresponsible to let even well-trained dogs off of a leash a city street, it just make sense to keep your birds in the right kind of bird cages. Forgetting the obvious cleanliness issues for you and your house, it's also an important part of the bird's safety. A typical house represents all sorts of potential dangers to an under-supervised bird, even more so if you have other pets. For example, though most people realize the unpleasant truth about birds and cats, it's always surprising to us how often we'll find folks who seem unaware that, in the wild, your dog and your bird would likely meet only as hunter and hunted.
There are actually a host of safety issues with keeping your winged pets safe, happy, and healthy and with no need to be rescued by groups like F.A.R. Bird cages that are kept clean, are the right size and style for your particular type of bird is just one of the most basic starting places. (For a lot more on bird safety, please take a look at this excellent wiki.)