Terenura maculata
Silhouette: Sheatherius · PhyloPic
In 3 days ~10% in a week ~20%
The streak-capped antwren (Terenura maculata) is a species of bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is found in Argentina, Brazil, and Paraguay. The streak-capped antwren is monotypic. It shares genus Terenura with the orange-bellied antwren (T. sicki); the two are sister species and may form a superspecies.
The streak-capped antwren is 9 to 10 cm (3.5 to 3.9 in) long; one individual weighed 6.5 g (0.23 oz). Adult males' crown, nape, and upper back are streaked black and white. The rest of their upperparts are tawny to chestnut with some yellow mixed in on the rump; they have a hidden white patch between the shoulders. Their wings are black with pale yellow edges on the flight feathers (tawny on the tertials) and white tips on the coverts. Their tail is olive-gray. Their throat and upper breast are white with black streaks, their lower breast yellow with black streaks, and their belly and undertail coverts unstreaked yellow. Adult females are much like males, though paler overall. The white streaks on their head and nape have a pale buff tinge and the streaking on their underparts is less... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Serra dos Órgãos National Park | 🇧🇷 Brazil | |
| 2 | Itatiaia National Park | 🇧🇷 Brazil | |
| 3 | Iguazú National Park | 🇦🇷 Argentina | |
| 4 | Iguaçu National Park | 🇧🇷 Brazil | |
| 5 | Tijuca National Park | 🇧🇷 Brazil |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Rio de Janeiro | 🇧🇷 Brazil |
Rare
Under 5% of wildlife watchers report a Streak-capped Antwren sighting in Rio de Janeiro on a given day, based on 91 verified sightings from GBIF citizen-science data. It is the 129th most-seen of the 278 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.
April and June
In those months about 10% of wildlife watchers report a Streak-capped Antwren in Rio de Janeiro on a given day, against under 5% in May and July–March, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Streak-capped Antwren sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
Only Rio de Janeiro, in our data
Rio de Janeiro is the only city on Wallace's Line with enough records to rate Streak-capped Antwren sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Thamnophilidae
The closest relatives of the Streak-capped Antwren that you can see in Rio de Janeiro (family Thamnophilidae, Typical Antbirds) are Chestnut-backed Antshrike (about 20%), White-flanked Antwren (about 10%) and Rufous-margined Antwren (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Streak-capped Antwren is recorded against all the birds logged in Rio de Janeiro (91 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.
