Hylophilus thoracicus
Silhouette: Sheatherius · PhyloPic
In 3 days ~20% in a week ~30%
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 |
With luck
About 10% of wildlife watchers report a Lemon-chested Greenlet sighting in Tijuca National Park on a given day, based on 140 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 87th most-seen of the 214 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
March–August and December–January
In those months about 10% of wildlife watchers report a Lemon-chested Greenlet in Tijuca National Park on a given day, against under 5% in February and September–November, the lowest months.
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.
Yes
Of the 5 parks where we can rate Lemon-chested Greenlet sightings, Tijuca National Park has the highest daily chance: about 10%. Next come Serra dos Órgãos National Park (Brazil, under 5%) and Yasuní National Park (Ecuador, under 5%).
Same family: Vireonidae
The closest relatives of the Lemon-chested Greenlet that you can see in Tijuca National Park (family Vireonidae, Vireos, Shrike-Babblers, and Erpornis) are Red-eyed Vireo (about 10%) and Rufous-browed Peppershrike (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Lemon-chested Greenlet is recorded against all the birds logged in Tijuca National Park (140 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.
