White-throated Mountaingem
Lampornis castaneoventris
The White-throated Mountaingem (Lampornis castaneoventris) is a uncommon hummingbird found in 2 countries, weighing about 5 g. The white-throated mountaingem or white-throated mountain-gem is a species of hummingbird in tribe Lampornithini of subfamily Trochilinae.










About the White-throated Mountaingem
The white-throated mountaingem or white-throated mountain-gem is a species of hummingbird in tribe Lampornithini of subfamily Trochilinae. It is endemic to the highlands of Costa Rica and Panama.
Text adapted from Wikipedia, licensed CC BY-SA 4.0.
How to identify it
The grey-tailed mountaingem is about 12 cm (4.7 in) long and weighs about 5 to 6 g (0.18 to 0.21 oz). It has a medium-length straight black bill, dark cheeks, and a white stripe behind the eye. Males have mostly dark bronzy green upperparts with an emerald green crown and a black to bluish black tail. Their chin and throat are white, the sides of the neck and upper breast bright green, and the lower breast and vent area dark gray. Females have entirely bright green upperparts. Their central tail feathers are dark metallic to bronze green and the outer ones paler. Voice: The white-throated mountaingem makes high pitched calls described as "ziit or ziip" and also "a 'sputtery, bubbly' song".
Where it lives
When to see it
Best months: January, February, March, April, May, July, August, October, November, December, with peak activity in March. It is a variable species across most of its range.
Easily confused with
Quick questions
- How do you identify a White-throated Mountaingem?
- The grey-tailed mountaingem is about 12 cm (4.7 in) long and weighs about 5 to 6 g (0.18 to 0.21 oz). Full identification notes are on this page.
- How big is a White-throated Mountaingem?
- The White-throated Mountaingem is a tiny sized bird weighing about 5 g.
- Where can you see a White-throated Mountaingem?
- The White-throated Mountaingem occurs in 2 countries, including Costa Rica and Panama.
- What birds look similar to a White-throated Mountaingem?
- The White-throated Mountaingem is most easily confused with the Purple-throated Mountaingem, the Green-throated Mountaingem and the Amethyst-throated Mountaingem.
Learn the White-throated Mountaingem for real
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