Hi Payton, welcome to the forums.....
Allee's right some of us asked the same questions you are & others of us trolled around & popped up one day so they didn't seem such a newbee, but in the end, we generally are always learning something around here.....
Before you get misled, there are rescue/rehome situations/birds and then there are rescue/rehome situations/birds.....many times you will read an advertisement with the catch-phrase "rescue" heading it, but in reality, it is no more than a sale, with the only recuse/rehome possibly the seller's rescuing/rehoming your $$$.....you need to be careful of some of these ads.....a person who cares for their African grey or other bird, but pricey birds especially, will usually have some type of veterinarian history (if only because of the value of the bird) on the bird (check those histories out)...a person with no history on their bird, could very well be a bird flipper, with the bird ending up being a serious money pit, very quickly.....
Checkout petfinder.com for potential birds close to you...some may come with cages, but not always, then, someone around here will probably see this thread & may be able to help you out.....
Good luck.....