Cymbilaimus sanctaemariae
Silhouette: Sheatherius · PhyloPic
In 3 days ~10% in a week ~30%
The bamboo antshrike (Cymbilaimus sanctaemariae) is a species of bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is found in Bolivia, Brazil, and Peru. Until the 1980s what is now the bamboo antshrike was treated as a subspecies of the fasciated antshrike (C. lineatus). The two are the only species in genus Cymbilaimus. The bamboo antshrike is monotypic.
The bamboo antshrike is 16 to 17 cm (6.3 to 6.7 in) long and weighs 28 to 33 g (0.99 to 1.2 oz). This species exhibits significant sexual dimorphism. Both sexes have a small crest, a dark brown iris, and a somewhat heavy bill with a hook at the end like true shrikes. Adult males have a black forehead and crown; the rest of their plumage is thin black and white bars. Females have a rufous crown with black tips on the crest feathers. Their upperparts and tail have thin dark brown and pale yellowish brown bars, their throat is plain buffy white, and the rest of their underparts are mostly plain cinnamon-buff with darker barring on the sides and flanks.
The bamboo antshrike is found in the western Amazon Basin of southeastern... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Manu National Park | 🇵🇪 Peru | |
| 2 | Tambopata National Reserve | 🇵🇪 Peru |
Rare
Under 5% of wildlife watchers report a Bamboo Antshrike sighting in Tambopata National Reserve on a given day, based on 145 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 268th most-seen of the 550 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 30%, if each day is a fresh chance.
May and July–August
In those months about 10% of wildlife watchers report a Bamboo Antshrike in Tambopata National Reserve on a given day, against under 5% in June and September–April, the lowest months. Those are among Tambopata National Reserve's driest months, with about 85 mm of rain a month against 420 mm in February.
Between midnight and 3 am
Across all the parks we cover, that three-hour window holds the most Bamboo 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.
2nd of 2
Of the 2 parks where we can rate Bamboo Antshrike sightings, Tambopata National Reserve ranks 2nd at under 5%. The best odds are in Manu National Park (Peru, about 10%).
GBIF citizen-science records
It is estimated from how often the Bamboo Antshrike is recorded against all the birds logged in Tambopata National Reserve (145 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.
