What is the scientific name of state bird?

There is no single "state bird" for all states, as each state has its own designated bird. For example, the state bird of California is the California Quail (Callipepla californica), while the state bird of Texas is the Northern Mockingbird (Mimus polyglottos). You can find a list of state birds and their scientific names by searching for "state birds of the United States" or visiting the websites of individual state governments.