parrot generally applies both to the entire order and to Psittacidae alone. All members of the order Psittaciformes have a characteristic curved beak shape with the upper mandible having slight mobility in the joint with the skull and a generally erect stance. All parrots are zygodactyl—meaning they have four toes on each foot: two that face front and two that face back. Conures and all other New World parrots are often placed in a subfamily or tribe Arinae. Internal relationships of conures are poorly understood though it seems evident that, to make them a natural grouping, the quaker parakeet, the thick-billed parrot, and Brotogeris should be included, and often are. Neotropical parrots, macaws, and other are also candidates potential for inclusion. In this scheme, "conure" comprises members of the genera: Aratinga Pyrrhura Nandayus (now an Aratinga species) Guarouba (Queen of Bavaria conure) Cyanoliseus Enicognathus Leptosittaca Ognorhynchus Conuropsis Rhynchopsitta: thick-billed parrot Myopsitta: quaker parakeet Macaws: Ara Anodorhynchus Cyanopsitta Diopsittaca Orthopsittaca Primolius The caiques and the hawk-headed parrot have also been proposed for inclusion, though both have a heavier build and different tail structure from traditional conures. Non-native colonies Conures are highly adaptable to urban environments, and several non-native colonies have been observed globally. The exact origins of such colonies are generally unverifiable. Honolulu, Hawaii A colony of cherry-headed conures lives around the slopes of Diamond Head. Seattle, Washington A conure colony lives in Seward Park. San Francisco, California A colony of cherry-headed conures lives on Telegraph Hill, San Francisco. They are the subject of a film, The Wild Parrots of Telegraph Hill, based on a story by Mark Bittner. Flocks of conures can be seen and heard in many other areas of San Francisco such as the Tenderloin district. Santa Clara County, California Multiple colonies of cherry-headed and/or mitred conures thrive in and around Santa Clara County, California. In particular Sunnyvale, Cupertino (especially around the Apple Campus), and Palo Alto. Los Angeles, California Multiple colonies of cherry-headed conures live in the San Gabriel Valley (the suburbs northeast of Los Angeles). Subtropical U.S. cities like Los Angeles are great environments for tropical birds because of all the tropical plants that are cultivated as ornamentals, providing them with their natural food supply. Flocks of fifty or more descend on fruit trees during their bearing season, staying for a few days and making a deafening racket. During mating season they build nests in the