Green-Throated Mountain-Gem

The green-throated mountain-gem is the fifth lifer hummingbird I saw at Finca El Pilar outside Antigua, Guatemala.  I submitted three separate entries on iNaturalist but none have had any identifiers yet. The name "green-throated" comes from the male because the female has a white throat. Further, my best photo has a hummingbird with a blue throat, but Birds of the World says the throat can be blue or green. 

The male has a straight black bill; green upperparts with some bronze on the rump; bluish black uppertail coverts; a white throat with bluish-green iridescent discs; a white breast;  grayish underparts; mottled green on the sides and flanks; dusky gray undertail-coverts; the central tail retrices are black and the remainder are pale gray. The female is similar, but the throat is white and it lacks the bronze on the rump. 

Illustration of a female from Birds of the World. 

Illustration of a male from Birds of the World. 

There are four subspecies. I saw ssp. vindipallens, the nominate ssp., which is found in the highlands of eastern guatemala, extreme northern El Salvador and western Honduras. AI indicates that vindipallens is also found in the highlands (cloud forest and pine-oak) around Antigua, Guatemala, including at Finca El Pilar. 

Range from Birds of the World.