Heterophasia annectans
Silhouette: Jiekun He · PhyloPic
In 3 days ~50% in a week ~80%
The rufous-backed sibia (Leioptila annectens) is a passerine bird in the family Leiothrichidae. It was formerly placed in the genus Heterophasia but is now the only species in the genus Leioptila. It is found from the Himalayas to south-central Vietnam.
Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical moist montane forests. Collar, N. J. & Robson C. 2007. Family Timaliidae (Babblers) pp. 70 – 291 in; del Hoyo, J., Elliott, A. & Christie, D.A. eds. Handbook of the Birds of the World, Vol. 12. Picathartes to Tits and Chickadees. Lynx Edicions, Barcelona. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Namdapha National Park | 🇮🇳 India | |
| 2 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 3 | Royal Manas National Park | 🇧🇹 Bhutan |
Possible
About 20% of wildlife watchers report a Rufous-backed Sibia sighting in Doi Inthanon National Park on a given day, based on 563 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 67th most-seen of the 367 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.
June and July
In those months about 40% of wildlife watchers report a Rufous-backed Sibia in Doi Inthanon National Park on a given day, against about 10% in April–May and September–November, the lowest months. Those are among Doi Inthanon National Park's wettest months, with about 300 mm of rain a month against 20 mm in February.
Among the best
Of the 3 parks where we can rate Rufous-backed Sibia sightings, Doi Inthanon National Park ranks 2nd at about 20%, level with the leaders once rounded. The best odds are in Namdapha National Park (India, about 20%).
GBIF citizen-science records
It is estimated from how often the Rufous-backed Sibia is recorded against all the birds logged in Doi Inthanon National Park (563 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.
