Green-backed firecrown

The green-backed firecrown (Sephanoides sephaniodes) is a hummingbird that is found in Argentina and Chile. It is an important pollinator for the temperate rainforest regions of southern South America.[2] It can be fairly common in some locations, especially on Robinson Crusoe Island, 650 kilometres (350 nmi) miles off the Chilean coast. It can be found in the Chilean matorral ecoregion, extending as far south as Tierra del Fuego.[3]

Green-backed firecrown
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Apodiformes
Family: Trochilidae
Genus: Sephanoides
Species:
S. sephaniodes
Binomial name
Sephanoides sephaniodes
(Lesson, 1827)

Like its cousin the Juan Fernández firecrown, the green-backed firecrown often hangs from flower petals or leaves with its feet. Their nests are built in high branches or bushes. It exploits various flowers for nectar, and is able to recall not only the nectar location among identical flowers but also to the location of the most rewarding nectar among less rewarding flowers.[4]

Much of the life history of the green-backed firecrown is unknown, including details of its migratory behavior, population dynamics, and pollination activities in the rainforests of southern South America. The species is sexually dimorphic, with large, short-billed males, and smaller, longer-billed females. Young green-backed firecrowns are sexually monochromatic, which makes it difficult to assign a sex to them.[2]

References
  1. "Sephanoides sephaniodes". IUCN Red List of Threatened Species. 2016: e.T22687857A93172170. 2016. doi:10.2305/IUCN.UK.2016-3.RLTS.T22687857A93172170.en. Retrieved 23 October 2020.
  2. McFadden, Tyler Neal; Biscarra, Gabriela; Ruiz, Jorge; Navedo, Juan (2019). "Recommended Band Sizes and a Novel Technique for Sexing Immature Green-backed Firecrown Hummingbirds (Sephanoides sephaniodes)". Ornitología Neotropical. 30: 179–184. ISSN 1075-4377.
  3. C. Michael Hogan & World Wildlife Fund. 2013. Chilean matorral. ed. M.McGinley. Encyclopedia of Earth. National Council for Science and the Environment. Washington DC
  4. Gónzalez-Gómez, Paulina L.; Vásquez, Rodrigo A. (August 2006). "A field study of spatial memory in green-backed firecrown hummingbirds (Sephanoides sephaniodes)" (PDF). Ethology. 112 (8): 790–795. doi:10.1111/j.1439-0310.2006.01223.x. ISSN 0179-1613.


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