Spilornis rufipectus
Silhouette: Sheatherius · PhyloPic
In 3 days ~30% in a week ~50%
The Sulawesi serpent eagle (Spilornis rufipectus) is a species of bird of prey in the family Accipitridae. It is endemic to Sulawesi in Indonesia. Its natural habitat is subtropical or tropical moist lowland forest. It measures 46-54 cm long and has a wingspan of 105-120 cm. 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 Serpent-Eagle sighting in Tangkoko Nature Reserve on a given day, based on 91 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 68th most-seen of the 138 birds we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
February and October–November
In those months about 20% of wildlife watchers report a Sulawesi Serpent-Eagle in Tangkoko Nature Reserve on a given day, against under 5% in July, the lowest month.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Sulawesi Serpent-Eagle sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Tangkoko Nature Reserve, in our data
Tangkoko Nature Reserve is the only park on Wallace's Line with enough records to rate Sulawesi Serpent-Eagle sightings: about 10% of wildlife watchers there report one on a given day.
Same family: Accipitridae
The closest relatives of the Sulawesi Serpent-Eagle that you can see in Tangkoko Nature Reserve (family Accipitridae, Hawks, Eagles, and Kites) are Brahminy Kite (about 30%), Sulawesi Hawk-Eagle (about 20%) and White-Bellied Sea-Eagle (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Sulawesi Serpent-Eagle is recorded against all the birds logged in Tangkoko Nature Reserve (91 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.
