Global Range: (>2,500,000 square km (greater than 1,000,000 square miles)) Subspecies' ranges disjunct. Nominate subspecies, Oregon south to Baja California, Mexico. Subspecies DIONE, prairies of the Great Plains from Alberta south to Oklahoma; west as far as Illinois. Range of DIONE expanding in east.
Non-Migrant: No. All populations of this species make significant seasonal migrations.
Locally Migrant: No. No populations of this species make local extended movements (generally less than 200 km) at particular times of the year (e.g., to breeding or wintering grounds, to hibernation sites).
Locally Migrant: No. No populations of this species make annual migrations of over 200 km.