description White-throated Mountain-gem Overview
The White-throated Mountain-gem, Lampornis castaneoventris, is a hummingbird of the mountain forests of Costa Rica and western Panama. It is associated with the Talamanca highlands and is identified by the white throat that gives the species its common name, together with the compact form typical of mountain-gems. The bird is relevant to observers and researchers studying high-elevation hummingbirds and the restricted ranges of Central American forest species.
help White-throated Mountain-gem FAQ
Where is the White-throated Mountain-gem found?
Lampornis castaneoventris is restricted to highlands in Costa Rica and western Panama. Its range includes the Talamanca highlands and Panama's Chiriqui region. [Avibase species record](https://avibase.bsc-eoc.org/species.jsp?avibaseid=6AED5E0695B322D9&lang=EN)
How do male and female White-throated Mountain-gems differ?
Adult males have a conspicuous white throat, green upperparts, and darker lower underparts. Females are generally greener above with more rufous coloring on the throat and belly. [BirdForum field account](https://www.birdforum.net/opus/White-throated_Mountain-gem)
What habitat does the White-throated Mountain-gem use?
It lives in montane and oak forests, including forest edges, shrubby clearings, and gardens near forest. A documented male was recorded at Savegre in Costa Rica in October 2022. [Cornell Macaulay Library](https://macaulaylibrary.org/video/546700241)
Is the White-throated Mountain-gem the same bird as the Gray-tailed Mountain-gem?
The names can be confusing because older classifications grouped some Costa Rican forms with the White-throated Mountain-gem. Modern checklists may treat Lampornis cinereicauda as a separate Gray-tailed Mountain-gem, so the source's taxonomy matters. [American Ornithologists' Society](https://americanornithology.org/wp-content/uploads/2021/11/2022-A.pdf)
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