Butastur liventer
Silhouette: Sheatherius · PhyloPic
In 3 days <5%
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 |
Rare
Under 5% of wildlife watchers report a Rufous-winged Buzzard sighting in Bangkok on a given day, based on 25 verified sightings from GBIF citizen-science data. It is the 224th most-seen of the 277 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 Rufous-winged Buzzard in Bangkok on a given day, so our monthly data shows no clear season.
Only Bangkok, in our data
Bangkok is the only city on Wallace's Line with enough records to rate Rufous-winged Buzzard sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Rufous-winged Buzzard is recorded against all the birds logged in Bangkok (25 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.
