Apalharpactes mackloti
Silhouette: Keith Murdock (photo), John E. McCormack, Michael G. Harvey, Brant C. Faircloth, Nicholas G. Crawford, Travis C. Glenn, Robb T. Brumfield & T. Michael Keesey · PhyloPic
In 3 days ~90% in a week >90%
The Sumatran trogon (Apalharpactes mackloti) is a species of bird in the family Trogonidae. It was formerly considered conspecific with the Javan trogon under the common name blue-tailed trogon. It is endemic to the Indonesian island of Sumatra. Its natural habitat is subtropical or tropical moist montane forest. The 12 species of Asian trogons inhabit forests throughout the southern Asian mainland and the Greater Sunda and Philippine islands. No trogons are present on the Sundaic island of Palawan, and none have succeeded in colonizing islands east of Wallace's Line.
The Sumatran trogon is 30 cm (12 in) from tip of the bill to tip of the tail with bluish-green upper parts and a yellow throat and belly. It has a patch of exposed blue skin around the eyes, a red beak, orange feet, and a long, iridescent, blue tail. The males have a characteristic thick chestnut coloured band on their rump, and thicker, more defined barring on the wing panels.
The Sumatran trogon closely resembles the Javan trogon (Apalharpactes reinwardtii) (the two populations were previously considered a single species), however the Javan trogon is nearly 30% larger than the Sumatran trogon is,... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kerinci Seblat National Park | 🇮🇩 Indonesia |
More parks will be added in future updates.
Likely
About 50% of wildlife watchers report a Sumatran Trogon sighting in Kerinci Seblat National Park on a given day, based on 423 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 6th most-seen of the 203 birds we can rate there. Over three days the chance rises to about 90%, and over a week to over 90%, if each day is a fresh chance.
May and July–August
In those months about 60% of wildlife watchers report a Sumatran Trogon in Kerinci Seblat National Park on a given day, against about 30% in October, the lowest month. January has too few records to rate.
Between 3 and 6 am
Across all the parks we cover, that three-hour window holds the most Sumatran Trogon sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is most active around dawn and dusk.
Only Kerinci Seblat National Park, in our data
Kerinci Seblat National Park is the only park on Wallace's Line with enough records to rate Sumatran Trogon sightings: about 50% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Sumatran Trogon is recorded against all the birds logged in Kerinci Seblat National Park (423 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.
