Nisaetus lanceolatus
Silhouette: Sheatherius · PhyloPic
In 3 days ~50% in a week ~80%
The Sulawesi hawk-eagle (Nisaetus lanceolatus) (earlier placed under Spizaetus), also known as Celebes hawk-eagle, is a medium-sized, approximately 64 cm (25 in) long, crestless brown raptor in the family Accipitridae. The adults have rufous-brown, boldly marked head and chest feathers, dark brown wings and black-barred white below. The young has white head and underparts.
An Indonesian endemic, the Sulawesi hawk-eagle is distributed in rainforests of Sulawesi and its satellite islands of Buton, Muna, Banggai and Sula Islands. The diet consists mainly of birds, lizards, snakes and mammals.
Widespread throughout its habitat range, the Sulawesi hawk-eagle is evaluated as Least Concern on the IUCN Red List of Threatened Species. It is listed on Appendix II of CITES. BirdLife Species Factsheet Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Tangkoko Nature Reserve | 🇮🇩 Indonesia |
More parks will be added in future updates.
Possible
About 20% of wildlife watchers report a Sulawesi Hawk-Eagle sighting in Tangkoko Nature Reserve on a given day, based on 218 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 46th most-seen of the 138 birds we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
February
In that month about 40% of wildlife watchers report a Sulawesi Hawk-Eagle in Tangkoko Nature Reserve on a given day, against about 10% in December, the lowest month.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Sulawesi Hawk-Eagle sightings with a recorded time, and about 7 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 Hawk-Eagle sightings: about 20% of wildlife watchers there report one on a given day.
Same family: Accipitridae
The closest relatives of the Sulawesi Hawk-Eagle that you can see in Tangkoko Nature Reserve (family Accipitridae, Hawks, Eagles, and Kites) are Brahminy Kite (about 30%), White-Bellied Sea-Eagle (about 20%) and Sulawesi Serpent-Eagle (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Sulawesi Hawk-Eagle is recorded against all the birds logged in Tangkoko Nature Reserve (218 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.
