The firecrowns are the genus Sephanoides of the hummingbird

Hummingbird

Hummingbirds are birds that comprise the family Trochilidae. They are among the smallest of birds, most species measuring in the 7.5–13 cm range. Indeed, the smallest extant bird species is a hummingbird, the 5-cm Bee Hummingbird. They can hover in mid-air by rapidly flapping their wings...

s. There are two species.

• Green-backed Firecrown
  Green-backed Firecrown
  The Green-backed Firecrown is a hummingbird that is found in Argentina and Chile. It can be fairly common in some locations, especially the Robinson Crusoe Island, 350 miles off the Chilean coast. It is found as far south as Tierra del Fuego.Like its cousin the Juan Fernández Firecrown, the...
  
  , Sephanoides sephaniodes
• Juan Fernández Firecrown
  Juan Fernandez Firecrown
  The Juan Fernández Firecrown is a hummingbird found solely on Isla Róbinson Crusoe, one of a three-island archipelago belonging to Chile. It is non-migratory and shares the island with the smaller Green-backed Firecrown, Sephanoides sephaniodes.The population of this species has been in a general...
  
  , Sephanoides fernandensis

The Green-backed Firecrown occurs widely in Argentina

Argentina

Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...

 and Chile

Chile

Chile ,officially the Republic of Chile , is a country in South America occupying a long, narrow coastal strip between the Andes mountains to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far...

, but the Juan Fernández Firecrown is found solely on Isla Róbinson Crusoe

Robinson Crusoe Island

Robinson Crusoe Island , formerly known as Más a Tierra , or Aguas Buenas, is the largest island of the Chilean Juan Fernández archipelago, situated 674 kilometres west of South America in the South Pacific Ocean...

, one of a three-island archipelago belonging to Chile

Chile

Chile ,officially the Republic of Chile , is a country in South America occupying a long, narrow coastal strip between the Andes mountains to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far...

.

Both species will hang from flower petals or leaves with their feet. They feed on nectar and insect

Insect

Insects are a class of living creatures within the arthropods that have a chitinous exoskeleton, a three-part body , three pairs of jointed legs, compound eyes, and two antennae...

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