The Calliope Hummingbird is tiny (2.75 to 3.25 inches) with a short black bill and a very short tail. The male has streaky wine-red feathers at his throat, over a white background. His back and crown are bright green and he has creamy white undersides. The female has a bright green back and creamy white undersides. Her throat is usually stippled with a brownish bronze.
Where you might see them
Most common in northern California, northwestern Nevada and northern Idaho.
The Calliope Hummingbird is the smallest breeding bird found in the United States.