Nisaetus alboniger
Silhouette: Sheatherius · PhyloPic
In 3 days <5%
Blyth's hawk-eagle (Nisaetus alboniger) (earlier treated as Spizaetus) is a medium-sized bird of prey. Like all eagles, it is in the family Accipitridae. It can be found in the Malay Peninsula, Singapore, Sumatra and Borneo. It is a bird of open woodland, although island forms prefer a higher tree density. It builds a stick nest in a tree and lays a single egg.
It is a fairly small eagle at about 50–60 cm (20–24 in) in length. The adult has a thick white band on uppertail and undertail, all black above, black spotted breast, barred below. It has a prominent crest like the bazas. Juvenile is dark brown above, and has a light brown head and underparts.
The common name commemorates Edward Blyth (1810–1873), English zoologist and Curator of the Museum of the Asiatic Society of Bengal. BirdLife Species Factsheet Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kerinci Seblat National Park | 🇮🇩 Indonesia | |
| 2 | Khao Luang National Park | 🇹🇭 Thailand | |
| 3 | Kinabalu Park | 🇲🇾 Malaysia | |
| 4 | Taman Negara National Park | 🇲🇾 Malaysia | |
| 5 | Danum Valley Conservation Area | 🇲🇾 Malaysia | |
| 6 | Khao Sok National Park | 🇹🇭 Thailand | |
| 7 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kuala Lumpur | 🇲🇾 Malaysia |
Rare
Under 5% of wildlife watchers report a Blyth's Hawk-Eagle sighting in Kuala Lumpur on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 209th most-seen of the 228 birds we can rate there. Over three days the chance rises to under 5%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Blyth's Hawk-Eagle in Kuala Lumpur on a given day, so our monthly data shows no clear season.
Between 4 and 7 am
Across all the parks we cover, that three-hour window holds the most Blyth's Hawk-Eagle sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Only Kuala Lumpur, in our data
Kuala Lumpur is the only city on Wallace's Line with enough records to rate Blyth's Hawk-Eagle sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Blyth's Hawk-Eagle is recorded against all the birds logged in Kuala Lumpur (7 verified sightings), 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.
