Selasphorus calliope

Formerly placed in the genus Stellula, but genetic data indicate that Selasphorus is paraphyletic if calliope is excluded (AOU 2012 and sources cited therein). Placed in the genus Archilochus by Johnsgard (1983) and Howell and Webb (1995).

Fairly large range in western North America; presumed large population size; distribution and abundance probably relatively stable; no known major threats.

Breeding range extends from central interior British Columbia (also Vancouver Island) and west-central Alberta south through Washington, Oregon, Nevada, and California to northern Baja California (Sierra San Pedro Martir), and east to western Montana, western Wyoming, and Utah (AOU 1998). Winter range extends from southern Sinaloa south to Michoacán, Guerrero, and Oaxaca, and east to Aguascalientes, Guanajuato, and Distrito Federal; casual, but increasingly regular, along Gulf Coast in southeastern Texas, southern Louisiana, southern Mississippi, southern Alabama, and northwestern Florida; one December record from western Texas (El Paso) (AOU 1998). Migrants pass through the southwestern United States, northern Baja California, and northwestern Mexico (casually eastward to southwestern Saskatchewan, South Dakota, western Nebraska, Kansas, and western Texas) (AOU 1998). Nesting range extends from 180 meters (Washington) to >3000 meters (California).

Range extent is less than 200,000 sq km if based on the historical winter range, but that range has been increasing. Breeding range exceeds 200,000 sq km.

The number of distinct occurrences or subpopulations has not been determined using standardized criteria, but this species is represented by a large number of observation/collection sites (e.g., see GBIF database, eBird) and locations (as defined by IUCN).

No major threats are known (Calder and Calder 1994). Over the short term, deforestation may provide enhanced food resources if suitable nectar sources increase in clearings and along forest edges. Climate change potentially may affect the phenology of hummingbird nectar resources, but no detrimental impacts of climate change on hummingbird food supply or populations have been documented.