Calliope Hummingbird vs Volcano Hummingbird

Calliope Hummingbird

Selasphorus calliope

Tiny3 gShrubland

The calliope is the smallest breeding bird found in Canada and the United States. An adult calliope hummingbird can measure 7–10 cm (2.8–3.9 in) in length, span 11 cm (4.3 in) across the wings and weigh 2 to 3 g (0.071 to 0.106 oz). Calliope hummingbirds have glossy green on the back and crown with white underparts. The adult male has wine-red streaks on the gorget, green flanks, and a dark tail. When an adult male is competing for territory or females, the dark red feathers of its gorget distend outwards to create a more distinct appearance.

ID text from Wikipedia, CC BY-SA 4.0

Photo: Dario · CC0

Volcano Hummingbird

Selasphorus flammula

Tiny3 gGrassland

The volcano hummingbird is 7.5 to 8 cm (3.0 to 3.1 in) long. Males weigh about 2.5 g (0.088 oz) and females 2.8 g (0.099 oz). Both sexes of all subspecies have a short, straight, black bill and a small white spot behind the eye. The adult male of the nominate subspecies has bronze-green upperparts and rufous-edged black outer tail feathers. Its gorget is mauve-purple and the rest of the underparts mostly white. The sides of the breast have a buffy to pale cinnamon wash and green speckles. The adult female is also bronze-green above.

ID text from Wikipedia, CC BY-SA 4.0

Photo: iNaturalist user: carnifex · CC BY 4.0

Photos and recordings are credited to their authors under the licence shown. Full profiles: Calliope Hummingbird and Volcano Hummingbird.