Fancy may include ownership, showing, animal sports and other competitions, and breeding. Hobbyists may simply collect specimens of the animal in appropriate enclosures (vivaria), such as an aquarium, terrarium, or aviary. Some fanciers keep hobby farms, or menageries (private zoos). There are many animal fancy clubs and associations in the world catering to everything from pigeons to Irish Wolfhounds. Fanciers and fancierdom may collectively be referred to as the fancy for that kind of animal, e.g. the cat fancy.
Some examples of international animal fancy organizations are:
For many species of domesticated animal there are no international groups, but numerous unrelated national organizations, e.g. the American Poultry Association, and the New Zealand Cavy Club. They may commingle the interests of keepers of pet and show animals, and breeders of livestock and working animals (e.g. the British Horse Society), or focus on one or the other (e.g. the British Show Horse Association). For some species, there are few multi-breed organizations, but many breed-specific clubs, e.g. the Australian Stock Horse Society, the Parthenais Cattle Breeders Association, the Bernese Mountain Dog Club of New Zealand, etc. Single-breed clubs often exist regardless of the establishment of multi-breed groups, and may or may not affiliate with them, while national organizations often have subnational affiliates. Organizations at any level may combine the features of a breed registry, a fanciers' membership organization, a competition governing body, a trade association, a preservation group, and other categories, and may be nonprofits or commercial enterprises. Similar species-specific clubs exist for various non-domesticated species, e.g. the Golden Conure Society and the American Fancy Rat and Mouse Association.