Animal fancy is a hobby involving the appreciation, promotion, and/or breeding of pet or domestic animals. Fancy may include ownership, showing, trialling and other competitions, breeding and judging. Hobbyists may simply collect specimens of the animal in appropriate enclosures, such as aquaria and aviaries. Fanciers with means may keep hobby farms or private zoos. There are many animal fancy clubs and associations in the world catering for everything from pigeons to Irish Wolfhounds; members may own many animals or none at all.