• Welcome to BirdForum, the internet's largest birding community with thousands of members from all over the world. The forums are dedicated to wild birds, birding, binoculars and equipment and all that goes with it.

    Please register for an account to take part in the discussions in the forum, post your pictures in the gallery and more.
ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Puerto Rican Emerald - BirdForum Opus

Photo © by raulqc
Utuado, Puerto Rico June 2009
Riccordia maugaeus

Chlorostilbon maugaeus


9-11 cm This is one of the smaller hummingbirds.
Male is entirely green above and below with a black forked tail and a short, nearly straight bill that has red on the base of lower mandible.
Female has whitish underparts, a short white-tipped tail that can give impression of being straight, notched, or forked, and an entirely black bill.

Similar Species

Size, the bill, and for the male the forked tail, separates this species from both Puerto Rican Mango, Green Mango, and from Green-throated Carib. The male differs from Antillean Crested Hummingbird in lacking the green crest and rounded tail; For the female, longer bill and shorter tail of PR Emerald are the most important features; additionally, female Antillean Crested Hummingbird has a rounded tail.


Puerto Rico (primarily in montane forests)


This is a monotypic species.[1] found only in Puerto Rico.


Mostly mountain forests including edges and shade coffee plantations. less common at the coast, but not too bad at the south coast.


Puerto Rican Emeralds are highly territorial, often defending its territories with intense aerial pursuits.


The diet includes insects, spiders and nectar.


They breed throughout the entire year but breeding is concentrated before the wet season starts from February to May. Eggs are extremely small, measuring 8 by 13 mm.


  1. Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, J. A. Gerbracht, D. Lepage, B. L. Sullivan, and C. L. Wood. 2021. The eBird/Clements checklist of Birds of the World: v2021. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/

Recommended Citation

External Links

GSearch checked for 2020 platform.