What metals should be used to make a bird cage?

Stainless steel:

* Strong and durable

* Resistant to rust and corrosion

* Relatively inexpensive

Aluminum:

* Lightweight and strong

* Does not rust or corrode

* More expensive than stainless steel

Brass:

* Strong and durable

* Corrosion-resistant

* Has a golden color that many people find attractive

* More expensive than stainless steel

Copper:

* Strong and durable

* Corrosion-resistant

* Has a reddish-brown color that many people find attractive

* More expensive than stainless steel and aluminum