Hylophilus decurtatus
Silhouette: Sheatherius · PhyloPic
In 3 days ~70% in a week ~90%
The lesser greenlet (Pachysylvia decurtata) is a small passerine bird in the family Vireonidae, the vireos, greenlets, and shrike-babblers. It is found in Mexico, every Central American country, Colombia, Ecuador, and Peru.
The lesser greenlet was originally described in 1838 as Sylvicola decurtata. It later was renamed Hylophilus decurtatus and later still moved to its present genus Pachysylvia and its specific epithet returned to decurtata to match the feminine gender of the genus.
The lesser greenlet's further taxonomy is unsettled. The IOC, AviList, and BirdLife International's Handbook of the Birds of the World assign it these six subspecies: Subspecies P. d. minor was for a time treated as a separate species, the gray-headed greenlet, but regained its present subspecies status because... Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | San Pedro Sula | 🇭🇳 Honduras | |
| 2 | Panama City | 🇵🇦 Panama | |
| 3 | San José | 🇨🇷 Costa Rica | |
| 4 | San Salvador | 🇸🇻 El Salvador |
Possible
About 30% of wildlife watchers report a Lesser Greenlet sighting in Chagres National Park on a given day, based on 446 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 47th most-seen of the 372 birds we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
November
In that month about 50% of wildlife watchers report a Lesser Greenlet in Chagres National Park on a given day, against about 20% in January–February, April and July, the lowest months. That is one of Chagres National Park's wettest months, with about 280 mm of rain against 30 mm in February.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Lesser Greenlet sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
15th of 44
Of the 44 parks where we can rate Lesser Greenlet sightings, Chagres National Park ranks 15th at about 30%. The best odds are in Pico Bonito National Park (Honduras, about 60%), Tikal National Park (Guatemala, about 60%) and Gandoca-Manzanillo Wildlife Refuge (Costa Rica, about 50%). All parks ranked.
GBIF citizen-science records
It is estimated from how often the Lesser Greenlet is recorded against all the birds logged in Chagres National Park (446 verified sightings from 2019 to 2026), 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.
