Amethyst-throated mountaingem

The Amethyst-throated Mountain-gem or amethyst-throated hummingbird (Lampornis amethystinus) is a species of hummingbird in the family Trochilidae. It is found in El Salvador, Guatemala, Honduras, and is endemic to Mexico.[2] Its natural habitat is subtropical or tropical moist montane forest. One confirmed sighting of a male Amethyst-throated hummingbird had occurred in West Texas by Cornell Lab of Ornithology on one of their online live webcams on October 15, 2016.

Amethyst-throated Mountain-gem
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Apodiformes
Family: Trochilidae
Genus: Lampornis
Species:
L. amethystinus
Binomial name
Lampornis amethystinus
Swainson, 1827
Female

Description

The species exhibits sexual dimorphism where the males have a range of pink to blue throats and the females have a more tan colored throat.[2] Juveniles of both sexes look similar to females but often with a few pink feathers on the throat.[2]

When compared to similar sister species, it appears the color differences between this and others was a relatively recent evolutionary occurrence.[3]

Behavior

Generally the species focuses more on nectar than insects through traplining in under and midstory of forests.[2]

It is predominately unterritorial.[2] Its mating call occurs during mornings and evenings. If a female is attracted, the male will perform an aerial display. It starts by flying parallel to the ground in circles, dives towards the female, returns to its perch, and repeats this a handful of times.[2][4]

The nests are built by the females a couple meters off the ground with a clutch size of two white eggs.[2]


Subspecies
  • L. a. amethystinus (Swainson 1827)
  • L. a. margaritae (Salvin and Godman 1889)
  • L. a. circumventris (Phillips 1966)
  • L. a. salvini (Ridgway 1908)
  • L. a. nobilis (Griscom 1932)

References
  1. BirdLife International (2012). "Lampornis amethystinus". IUCN Red List of Threatened Species. 2012. Retrieved 26 November 2013.CS1 maint: ref=harv (link)
  2. "Amethyst-throated Hummingbird". neotropical birds. Retrieved 2019-05-24.
  3. Cortés-Rodríguez, Nandadevi; Hernández-Baños, Blanca E.; Navarro-Sigüenza, Adolfo G.; Townsend Peterson, A.; García-Moreno, Jaime (2008-07-01). "Phylogeography and population genetics of the Amethyst-throated Hummingbird (Lampornis amethystinus)". Molecular Phylogenetics and Evolution. 48 (1): 1–11. doi:10.1016/j.ympev.2008.02.005. ISSN 1055-7903.
  4. Uribe, Jorge; González, Clementina; Ornelas, Juan Francisco (2002-10-01). "Complex Vocalizations and Aerial Displays of the Amethyst-throated Hummingbird (Lampornis amethystinus)". The Auk: Ornithological Advances. 119 (4): 1141–1149. doi:10.1642/0004-8038(2002)119[1141:CVAADO]2.0.CO;2. ISSN 0004-8038.

[1]

  1. Chesser, R. Terry, Kevin J. Burns, Carla Cicero, Jon L. Dunn, Andrew W Kratter, Irby J. Lovette, Pamela C. Rasmussen, Jr. J. V. Remsen, Douglas F. Stotz, and Kevin Winker. 2019. “Sixtieth Supplement to the American Ornithological Society’s Check-List of North American Birds.” The Auk XX (June): 1–23. https://doi.org/10.1093/auk/ukz042.
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