California's state bird is the QUAIL, which is a small, plump bird with a short, rounded tail and a distinctive topknot of feathers. It is native to the western United States and is found in California, where it is the official state bird. The California QUAIL is a social bird that often gathers in large flocks, and its call is a familiar sound in the state. It is also known for its hardiness and adaptability, and is a popular game bird.