Tyto rosenbergii
Silhouette: Sharon Wegner-Larsen · PhyloPic
In 3 days ~20% in a week ~30%
The Sulawesi masked owl (Tyto rosenbergii) is a species of owl in the family Tytonidae. It is endemic to the Indonesian islands of Sulawesi, Sangihe and Peleng. It is listed by the IUCN as being of least concern. The Sulawesi masked owl was first described by the German ornithologist Hermann Schlegel in 1866 as Strix rosenbergii, but was later included in the genus Tyto. The specific name "rosenbergii" refers to the German surveyor and naturalist Hermann von Rosenberg who collected bird specimens in the East Indies and sent them to the National Museum of Natural History in Leiden to be classified.
Other common names for this bird include Rosenberg's owl, Rosenberg's barn-owl, Sulawesi owl, Sulawesi barn-owl, Celebes barn-owl, Celebes masked-owl and Celebes owl. The Sulawesi masked owl grows to a length of about 43 to 46 cm (17 to 18 in). The upperparts of the male are charcoal grey with scattered white spots and streaks. The underparts are buff with dark spots and streaks and... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tangkoko Nature Reserve | 🇮🇩 Indonesia |
More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Sulawesi Owl sighting in Tangkoko Nature Reserve on a given day, based on 55 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 85th most-seen of the 138 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
June–July, October and December
In those months about 10% of wildlife watchers report a Sulawesi Owl in Tangkoko Nature Reserve on a given day, against under 5% in January–May, August–September and November, the lowest months.
Between 5 and 8 pm
Across all the parks we cover, that three-hour window holds the most Sulawesi Owl sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is most active around dawn and dusk.
Only Tangkoko Nature Reserve, in our data
Tangkoko Nature Reserve is the only park on Wallace's Line with enough records to rate Sulawesi Owl sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Sulawesi Owl is recorded against all the birds logged in Tangkoko Nature Reserve (55 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.
