They are very rare, and, yes, endangered in the wild. The species, or subspecies as the case may be, I'm not sure whether they are now considered two separate species or not, but I THINK they are, which is the most endangered is not found in North America to my knowledge. I know they are not found in the USA. They are the "true" cape parrot, but I'll look up the scientific names in a bit and make a better, more accurate post.
This one is from the species or subspecies that is the least endangered in the wild, but I still think they are threatened.
Well, I better stop rambling and look up the real information.
OK, I was right in my thinking - IF my source is correct, lol.
The three birds were once considered the same species, Poicephalus robustus. Now, what was the nominate sub-species, Poicephalus robustus robustus, is the ONLY member of its species. There are no longer any sub-species. These birds are extremely endangered, and there are no members of this species in the USA. These birds have a limited habitat in South Africa. I believe they also have a specialized diet, and the trees they inhabit and find food in are also being wiped out.
The ones we have in the USA were once classified as poicephalus robustus fuscicollis and poicephalus robustus suahelicus. No longer. Now they are classified as poicephalus fuscicollis fuscicollis and poicephalus fuscicollis suahelicus. The suahelicus sub-species is the most common in the USA, and that is the subspecies being hand-fed in the bird store right now. North Americans have tried calling them both un-capes as well as calling fuscicollis fuscicollis the brown-necked parrot and fuscicollis suahelicus the grey-headed parrot. Nothing seems to be sticking consistently.
The birds don't seem to care what we call them. They seem pretty happy just to be alive.