Butastur liventer
Silhouette: Sheatherius · PhyloPic
In 3 days ~20% in a week ~40%
The rufous-winged buzzard (Butastur liventer) is an Asian bird of prey. It is a resident breeder of Indochina, Java and Sulawesi. It is a species of deciduous forest and second growth up to 800 m. The adult rufous-winged buzzard is 38–43 cm long. It has a grey head and underparts, with some streaking on the crown, neck and breast. The rest of the upperparts are rufous grey, and the uppertail is bright rufous. In flight, from above it shows rufous-chestnut flight feathers and the rufous uppertail, and from below it has a grey body, white underwing coverts, and greyish flight feathers and undertail. It is monomorphic. The juvenile is duller and browner, with a brown-grey head and white supercilium.
This species is similar in size and shape to the migratory grey-faced buzzard, but that species has browner upperparts and tail, a white throat, and brown-barred white belly. The rufous-winged buzzard eats lizards, small mammals and large insects. Its call is a shrill pit-piu.
Birdlife International Robson, Craig, A Field Guide to the Birds of Thailand ISBN 1-84330-921-1 Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 2 | Khao Yai National Park | 🇹🇭 Thailand | |
| 3 | Kaeng Krachan National Park | 🇹🇭 Thailand |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bangkok | 🇹🇭 Thailand |
With luck
About 10% of wildlife watchers report a Rufous-winged Buzzard sighting in Doi Inthanon National Park on a given day, based on 216 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 164th most-seen of the 367 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
September
In that month about 20% of wildlife watchers report a Rufous-winged Buzzard in Doi Inthanon National Park on a given day, against under 5% in April–August and October, the lowest months. That is one of Doi Inthanon National Park's wettest months, with about 330 mm of rain against 20 mm in February.
Yes
Of the 3 parks where we can rate Rufous-winged Buzzard sightings, Doi Inthanon National Park has the highest daily chance: about 10%. Next come Khao Yai National Park (Thailand, under 5%) and Kaeng Krachan National Park (Thailand, under 5%).
GBIF citizen-science records
It is estimated from how often the Rufous-winged Buzzard is recorded against all the birds logged in Doi Inthanon National Park (216 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.
