Hylophilus poicilotis
Silhouette: Sheatherius · PhyloPic
In 3 days <5%
The rufous-crowned greenlet (Hylophilus poicilotis) is a species of bird in the family Vireonidae, the vireos, greenlets, and shrike-babblers. It is found in Argentina, Brazil, Paraguay, and possibly Bolivia. The rufous-crowned greenlet is monotypic. However, for much of the twentieth century what is now the grey-eyed greenlet (Hylophilus amaurocephalus) was treated as a subspecies of it. By the 1990s they were generally recognized as separate species.
The rufous-crowned greenlet is about 12.5 cm (4.9 in) long and weighs 9 to 12 g (0.32 to 0.42 oz). The sexes have the same plumage. Adults have a bright chestnut-brown forehead and crown and mottled grayish black ear coverts. Their nape, upper back, and shoulders are olive-green and their lower back and rump are a brighter green. Their wings are dull grayish black with thin greenish edges on the outer webs of the primaries and secondaries and yellow-green edges on the inner webs of the tertials. Their tail is grayish green with brighter greenish edges on the feathers' outer webs. Their throat is dull pale gray, their upper breast yellowish gray, their lower breast dull yellow, their flanks... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Itatiaia National Park | 🇧🇷 Brazil | |
| 2 | Serra dos Órgãos National Park | 🇧🇷 Brazil | |
| 3 | Iguazú National Park | 🇦🇷 Argentina | |
| 4 | Iguaçu National Park | 🇧🇷 Brazil |
Rare
Under 5% of wildlife watchers report a Rufous-crowned Greenlet sighting in São Paulo on a given day, based on 22 verified sightings from GBIF citizen-science data. It is the 273rd most-seen of the 353 birds we can rate there. Over three days the chance rises to under 5%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Rufous-crowned Greenlet in São Paulo on a given day, so our monthly data shows no clear season.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Rufous-crowned Greenlet sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Among the best
Of the 2 cities where we can rate Rufous-crowned Greenlet sightings, São Paulo ranks 2nd at under 5%, level with the leaders once rounded. The best odds are in Curitiba (Brazil, under 5%).
Same family: Vireonidae
The closest relatives of the Rufous-crowned Greenlet that you can see in São Paulo (family Vireonidae, Vireos, Shrike-Babblers, and Erpornis) are Rufous-browed Peppershrike (about 40%) and Red-eyed Vireo (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Rufous-crowned Greenlet is recorded against all the birds logged in São Paulo (22 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.
