There are several genera represented by the birds we call "Conures". Green Cheeks are Pyrrhura Molinae and Suns are Aratinga Solstittialis for example. But there are 6 genera we call Macaw, and the Grey-Headed and Brown-Necked "Uncape" parrots are NOT in the genus as the Cape Parrot at this time, so I think even our fearless leader is not entirely consistent on the matter of how closely we think common language names should match taxonomic classification.
The word parakeet, according to Merriam-Webster, comes from a Spanish diminutive derived from the French word for parrot, and the dictionary definition is "any of numerous usually small slender parrots with a long graduated tail". Why this more general term is preferable to the general term "conure" I don't know. The best definition of "conure" I can find online is this: "Conures are a diverse, loosely-defined group of small to medium-sized parrots. They belong to several genera within a long-tailed group of the New World Parrot subfamily Arinae." from Wikipedia. For comparison, Wikipedia defines "macaw" thusly: "Macaws are small to large, often colourful New World parrots. Of the many different Psittacidae (true parrots) genera, six are classified as macaws: Ara, Anodorhynchus, Cyanopsitta, Primolius, Orthopsittaca, and Diopsittaca." It seems a reasonably well-defined term to me, and not really any looser than "Macaw" so I'm not sure why it is under so much fire. Caiques are two two species within a genus, but not the others in that genus... there isn't a good mapping betweeen taxonomy and common name. Why pick on conures?
If we want to be totally unambiguous, we should use the scientific names at all times. If we want to communicate colloquially, we should follow the dictates of common language usage. And for that, we go to the dicitionary...
I do see that there are some species under "Pyrrhura" and "Aratinga" that are not at all commonly spoken of, and they seem to be called "parakeet" rather than "conure" but since these aren't names in common use, why not call THEM "conure"? They LOOK like "Conures"!
I think if we can't use the terms "Conure" and "Macaw", then it is clear we shouldn't use the term "Cape Parrot". Not that I'm being provocative or anything...
