- Saucerottia beryllina
- Emerald green
- Purple rump
- Some purple wing and tail feathers
- Bright green gorget
- Black bill (lower mandible has red base)
- Undertail coverts cinnamon-brown
Female: duller with pale grey belly and undertail coverts.
Resident year round in Mexico to Guatemala, Honduras, and El Salvador, and a rare summer visitor to southeast Arizona and New Mexico.
This is a polytypic species[1 consisting of 5 subspecies.
- S. b. viola:
- Oak-pine woods of northwestern Mexico (Sonora to Guerrero)
- S. b. beryllina:
- Eastern and central Mexico (Veracruz to central Oaxaca)
- S. b. lichtensteini:
- Montane slopes of southern Mexico (western Chiapas)
- S. b. sumichrasti:
- Coastal mountains of southern Mexico (central and southern Chiapas)
- S. b. devillei:
Foothills and highlands, oak and pine woodlands and edges, oak scrub and clearings, plantations.
It builds a nest of plant fibres and spider webs, covered with lichens, in a tree or shrub. The 2 white eggs are incubated by the female for about 14 days.
The diet includes nectar and insects.
A series of hoarse, high twitters sirr, kirr-I-rr, kirr-I-rr; also a buzzing drrzzzzt.
- Clements, J. F., T. S. Schulenberg, M. J. Iliff, T. A. Fredericks, J. A. Gerbracht, D. Lepage, S. M. Billerman, B. L. Sullivan, and C. L. Wood. 2022. The eBird/Clements checklist of Birds of the World: v2022. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/
- Howell & Webb, 1995. A guide to the birds of Mexico and northern Central America. Oxford University Press. ISBN 0198540124
- BirdForum Opus contributors. (2023) Berylline Hummingbird. In: BirdForum, the forum for wild birds and birding. Retrieved 6 June 2023 from https://www.birdforum.net/opus/Berylline_Hummingbird
GSearch checked for 2020 platform.