Chrysuronia leucogaster
Silhouette: Ferran Sayol · PhyloPic
In 3 days ~60% in a week ~90%
The plain-bellied emerald (Chrysuronia leucogaster) is a species of hummingbird in the "emeralds", tribe Trochilini of subfamily Trochilinae. It is found in Brazil, the Guianas, and Venezuela. The plain-bellied emerald was formally described in 1788 by the German naturalist Johann Friedrich Gmelin in his revised and expanded edition of Carl Linnaeus's Systema Naturae. He placed it with all the other hummingbirds in the genus Trochilus and coined the binomial name Trochilus leucogaster. The species had been described and illustrated by the French naturalists Mathurin Jacques Brisson in 1760 and Georges-Louis Leclerc, Comte de Buffon in 1779. Gmelin did not specify a type locality but this was designated as Cayenne, French Guiana, by Hans von Berlepsch in 1908.
The plain-bellied emerald was for a time placed in the genus Agyrtria and then in Amazilia. A molecular phylogenetic study published in 2014 found that Amazilia was polyphyletic. In the revised classification to create monophyletic genera, the plain-bellied emerald was moved by most taxonomic systems to Chrysuronia. However, BirdLife International's Handbook of the Birds of the World retains it in... Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
Possible
About 30% of wildlife watchers report a Plain-bellied Emerald sighting in São Luís on a given day, based on 20 verified sightings from GBIF citizen-science data. It is the 32nd most-seen of the 74 birds we can rate there. Over three days the chance rises to about 60%, and over a week to about 90%, if each day is a fresh chance.
May
In that month about 50% of wildlife watchers report a Plain-bellied Emerald in São Luís on a given day, against about 20% in June–July and September–December, the lowest months. That is one of São Luís's wettest months, with about 240 mm of rain against 15 mm in October.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Plain-bellied Emerald sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 7
Of the 7 cities where we can rate Plain-bellied Emerald sightings, São Luís ranks 4th at about 30%. The best odds are in João Pessoa (Brazil, about 50%), Natal (Brazil, about 50%) and Recife (Brazil, about 40%).
Same order: Apodiformes
The closest relatives of the Plain-bellied Emerald that you can see in São Luís (order Apodiformes, Swifts and Hummingbirds) are Short-tailed Swift (about 20%) and Fork-tailed Palm-Swift (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Plain-bellied Emerald is recorded against all the birds logged in São Luís (20 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
