Orthotomus sericeus
Silhouette: Sheatherius · PhyloPic
In 3 days ~10% in a week ~20%
The rufous-tailed tailorbird (Orthotomus sericeus) is a species of bird formerly placed in the "Old World warbler" assemblage, it but now placed in the family Cisticolidae. It is found in Brunei, Indonesia, Malaysia, Myanmar, the Philippines, Singapore, and Thailand.
Its natural habitats are subtropical or tropical moist lowland forest and subtropical or tropical mangrove forest. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bako National Park | 🇲🇾 Malaysia | |
| 2 | Way Kambas National Park | 🇮🇩 Indonesia | |
| 3 | Khao Luang National Park | 🇹🇭 Thailand | |
| 4 | Sepilok | 🇲🇾 Malaysia | |
| 5 | Danum Valley Conservation Area | 🇲🇾 Malaysia | |
| 6 | Taman Negara National Park | 🇲🇾 Malaysia | |
| 7 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia | |
| 8 | Kinabalu Park | 🇲🇾 Malaysia | |
| 9 | Tanjung Puting National Park | 🇮🇩 Indonesia | |
| 10 | Gunung Leuser National Park | 🇮🇩 Indonesia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kuching | 🇲🇾 Malaysia | |
| 2 | Johor Bahru | 🇲🇾 Malaysia | |
| 3 | Singapore | 🇸🇬 Singapore | |
| 4 | Kuala Lumpur | 🇲🇾 Malaysia |
Rare
Under 5% of wildlife watchers report a Rufous-tailed Tailorbird sighting in Gunung Leuser National Park on a given day, based on 8 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 136th most-seen of the 166 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
April, June and November
In those months about 10% of wildlife watchers report a Rufous-tailed Tailorbird in Gunung Leuser National Park on a given day, against under 5% in May, July–October and December–March, the lowest months.
Between 2 and 5 am
Across all the parks we cover, that three-hour window holds the most Rufous-tailed Tailorbird sightings with a recorded time, and about half of them come between 6 pm and 6 am: it is most active around dawn and dusk.
10th of 10
Of the 10 parks where we can rate Rufous-tailed Tailorbird sightings, Gunung Leuser National Park ranks 10th at under 5%. The best odds are in Bako National Park (Malaysia, about 50%), Way Kambas National Park (Indonesia, about 40%) and Khao Luang National Park (Thailand, about 30%). All parks ranked.
Same genus: Orthotomus
The closest relatives of the Rufous-tailed Tailorbird that you can see in Gunung Leuser National Park (genus Orthotomus, Typical Tailorbirds) are Dark-necked Tailorbird (about 30%) and Ashy Tailorbird (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Rufous-tailed Tailorbird is recorded against all the birds logged in Gunung Leuser National Park (8 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.
