Hylophilus thoracicus
Silhouette: Sheatherius · PhyloPic
In 3 days <5% in a week ~10%
The lemon-chested greenlet (Hylophilus thoracicus) is a species of bird in the family Vireonidae, the vireos, greenlets, and shrike-babblers. It is found in Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname, and Venezuela.
The lemon-chested greenlet's taxonomy is unsettled. However, BirdLife International's Handbook of the Birds of the World (HBW) treats H. t. thoracicus as the Rio de Janeiro greenlet and, confusingly, the other two as the lemon-chested greenlet.
This article follows the IOC et al. one species, three-subspecies, model. The lemon-chested greenlet is 10 to 13 cm (3.9 to 5.1 in) long and weighs 11 to 14 g (0.39 to 0.49 oz). The sexes have the same plumage. Adults of the nominate subspecies H. t. thoracicus have an ochraceous olive forehead, a dull grayish olive crown, and a wide grayish nape collar. They have grayish lores and sides of the head with a... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tijuca National Park | 🇧🇷 Brazil | |
| 2 | Serra dos Órgãos National Park | 🇧🇷 Brazil | |
| 3 | Yasuní National Park | 🇪🇨 Ecuador | |
| 4 | Manu National Park | 🇵🇪 Peru | |
| 5 | Tambopata National Reserve | 🇵🇪 Peru |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Rio de Janeiro | 🇧🇷 Brazil |
Rare
Under 5% of wildlife watchers report a Lemon-chested Greenlet sighting in Yasuní National Park on a given day, based on 47 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 395th most-seen of the 533 birds we can rate there. Over three days the chance rises to under 5%, and over a week to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Lemon-chested Greenlet in Yasuní National Park on a given day, so our monthly data shows no clear season.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Lemon-chested Greenlet sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 5
Of the 5 parks where we can rate Lemon-chested Greenlet sightings, Yasuní National Park ranks 3rd at under 5%. The best odds are in Tijuca National Park (Brazil, about 10%) and Serra dos Órgãos National Park (Brazil, under 5%).
GBIF citizen-science records
It is estimated from how often the Lemon-chested Greenlet is recorded against all the birds logged in Yasuní National Park (47 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.
