Thamnophilus aethiops
Silhouette: Sheatherius · PhyloPic
In 3 days <5% in a week ~10%
The white-shouldered antshrike (Thamnophilus aethiops) is a species of bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is found in Bolivia, Brazil, Colombia, Ecuador, Peru, and Venezuela.
The white-shouldered antshrike was described by the English zoologist Philip Sclater in 1858 and given the binomial name Thamnophilus aethiops. It, the uniform antshrike (T. unicolor), and the upland antshrike (T. aroyae) form a superspecies or are sister species.
The white-shouldered antshrike has these 10 subspecies: Several of the subspecies are separated by rivers in the Amazon Basin and authors have suggested that they might represent individual species. The white-shouldered antshrike is 15 to 17 cm (5.9 to 6.7 in) long and weighs 23 to 30 g (0.81 to 1.1 oz). Members of genus Thamnophilus are largish members of the antbird family; all have stout bills with a hook like those of true shrikes. This species exhibits significant sexual dimorphism. Adult males of the nominate subspecies T. a. aethiops are mostly black. They have a few white spots on their wing's lesser coverts and the bend of the wing, white underwing... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tambopata National Reserve | 🇵🇪 Peru | |
| 2 | Anavilhanas National Park | 🇧🇷 Brazil | |
| 3 | Manu National Park | 🇵🇪 Peru | |
| 4 | Amboró National Park | 🇧🇴 Bolivia | |
| 5 | Sierra de la Macarena National Park | 🇨🇴 Colombia | |
| 6 | Yasuní National Park | 🇪🇨 Ecuador |
Rare
Under 5% of wildlife watchers report a White-shouldered Antshrike sighting in Amboró National Park on a given day, based on 6 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 235th most-seen of the 273 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 White-shouldered Antshrike in Amboró National Park on a given day, so our monthly data shows no clear season. June has too few records to rate.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most White-shouldered Antshrike sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 6
Of the 6 parks where we can rate White-shouldered Antshrike sightings, Amboró National Park ranks 4th at under 5%. The best odds are in Tambopata National Reserve (Peru, about 10%), Anavilhanas National Park (Brazil, under 5%) and Manu National Park (Peru, under 5%).
Same genus: Thamnophilus
The closest relatives of the White-shouldered Antshrike that you can see in Amboró National Park (genus Thamnophilus, Typical Antshrikes) are Chestnut-backed Antshrike (about 20%) and Variable Antshrike (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the White-shouldered Antshrike is recorded against all the birds logged in Amboró National Park (6 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.
