It can be really overwhelming! Parrots actually come in species, not breeds, although some birds like canaries and pigeons come in breeds. I suspect that soon the macaw hybrids will start to be known as breeds.
As of right now hybrids are a very controversial topic, so you have to be careful. Come people breed them deliberately, especially with macaws, and some do it by accident. The sad thing about many accidental hybrids, especially ones such as this, is that they are not different enough for people to really be sure what they are getting. It is very likely that whoever produced this bird doesn't even know he had two different kinds of conures. This leads to muddy bloodlines and hidden hybrids, which is not good even if you support deliberate hybridization. It is important to note that in the USA it is illegal to import most kinds of parrots, meaning that the gene pool we have is all that we have, so muddying the bloodlines should never be condoned.