Megastictus margaritatus
Silhouette: Sheatherius · PhyloPic
In 3 days <5% in a week ~10%
The pearly antshrike (Megastictus margaritatus) is a species of bird in subfamily Thamnophilinae of family Thamnophilidae, the "typical antbirds". It is found in Brazil, Colombia, Ecuador, Peru, and Venezuela. The pearly antshrike was described by the English zoologist Philip Sclater in 1855 and given the binomial name Myrmeciza margaritatus. The genus Megastictus was erected by the American ornithologist Robert Ridgway in 1909.
The pearly antshrike is the only member of genus Megastictus and has no subspecies. The pearly antshrike is 12 to 13 cm (4.7 to 5.1 in) long and weighs 18 to 21 g (0.63 to 0.74 oz). Adult males have a gray face, crown, and upperparts with white tips on the uppertail coverts. Their wings are black with large round white spots on the coverts and tertials. Their tail is black with white feather tips. Their underparts are gray that is lighter on the chin, throat, and the belly center. Adult females have a yellowish brown face, crown, and upperparts with a blackish tinge on the crown and pale buffish spots on the uppertail coverts. Their wings and tail are yellowish brown and spotted with pale buffish where the male... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Yasuní National Park | 🇪🇨 Ecuador |
More parks will be added in future updates.
Rare
Under 5% of wildlife watchers report a Pearly Antshrike sighting in Yasuní National Park on a given day, based on 40 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 407th most-seen of the 533 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.
March
In that month about 10% of wildlife watchers report a Pearly Antshrike in Yasuní National Park on a given day, against under 5% in April to February, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Pearly Antshrike sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Yasuní National Park, in our data
Yasuní National Park is the only park on Wallace's Line with enough records to rate Pearly Antshrike sightings: under 5% of wildlife watchers there report one on a given day.
Same family: Thamnophilidae
The closest relatives of the Pearly Antshrike that you can see in Yasuní National Park (family Thamnophilidae, Typical Antbirds) are Mouse-colored Antshrike (about 20%), Silvered Antbird (about 20%) and Dusky-throated Antshrike (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Pearly Antshrike is recorded against all the birds logged in Yasuní National Park (40 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.
