Lofortyx californicus, also known as the California quail or valley quail, is a small bird native to the western United States. This bird is commonly recognized for its characteristic plume atop its head, as well as its unique call. Synonyms for Lofortyx californicus include valley partridge, California partridge, and Gambel's quail. These synonyms reflect the different regions where the bird can be found, as well as its similarities to other types of partridge and quail. Despite its wide range and popularity among bird enthusiasts, Lofortyx californicus populations have been declining due to habitat loss and other environmental factors.