Phylloscartes ventralis
Silhouette: Emily Willoughby · PhyloPic
In 3 days ~10% in a week ~20%
The mottle-cheeked tyrannulet (Phylloscartes ventralis) is a generally common, small species of bird in the family Tyrannidae, the tyrant flycatchers. It is found in Argentina, Bolivia, Brazil, Paraguay, Peru, and Uruguay.
Some early twentieth century authors considered the mottle-cheeked tyrannulet and what are now the Panama tyrannulet (P. flavovirens) and olive-green tyrannulet (P. virescens) as conspecific. The three are now treated by many authors as a superspecies.
Some authors believe that the "recognition of subspecies may be unwarranted". The mottle-cheeked tyrannulet is about 12 cm (4.7 in) long and weighs about 9 g (0.32 oz). The sexes have the same plumage, and the subspecies also have essentially the same plumage as well. Adults have a short thin whitish supercilium, an indistinct broken whitish eye-ring, a dusky line through the eye, a wide whitish and dusky crescent below the eye, a dusky "moustache", and the eponymous whitish and... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Itatiaia National Park | 🇧🇷 Brazil | |
| 2 | Serra dos Órgãos National Park | 🇧🇷 Brazil | |
| 3 | El Palmar National Park | 🇦🇷 Argentina | |
| 4 | Amboró National Park | 🇧🇴 Bolivia | |
| 5 | Iguazú National Park | 🇦🇷 Argentina | |
| 6 | Iguaçu National Park | 🇧🇷 Brazil |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Buenos Aires | 🇦🇷 Argentina | |
| 2 | Curitiba | 🇧🇷 Brazil | |
| 3 | Montevideo | 🇺🇾 Uruguay | |
| 4 | Porto Alegre | 🇧🇷 Brazil | |
| 5 | São Paulo | 🇧🇷 Brazil |
Rare
Under 5% of wildlife watchers report a Mottle-cheeked Tyrannulet sighting in Buenos Aires on a given day, based on 427 verified sightings from GBIF citizen-science data. It is the 150th most-seen of the 274 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
June to August
In those months about 10% of wildlife watchers report a Mottle-cheeked Tyrannulet in Buenos Aires on a given day, against under 5% in September to May, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Mottle-cheeked Tyrannulet sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 5 cities where we can rate Mottle-cheeked Tyrannulet sightings, Buenos Aires has the highest daily chance: under 5%. Next come Curitiba (Brazil, under 5%) and Montevideo (Uruguay, under 5%).
Same family: Tyrannidae
The closest relatives of the Mottle-cheeked Tyrannulet that you can see in Buenos Aires (family Tyrannidae, Tyrant Flycatchers) are Great Kiskadee (about 90%), Cattle Tyrant (about 50%) and White-crested Tyrannulet (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Mottle-cheeked Tyrannulet is recorded against all the birds logged in Buenos Aires (427 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.
