Passer flaveolus
Silhouette: Andrew Butko (modified) · PhyloPic
In 3 days ~10% in a week ~20%
The plain-backed sparrow (Passer flaveolus), also called the Pegu sparrow or olive-backed sparrow, is a sparrow found in Southeast Asia. Its range spans from Myanmar to central Vietnam, and south to the western part of Peninsular Malaysia.
Giebel, C. G. (1877). Thesaurus Ornithologiae (in German). Vol. III. Brockhaus. Summers-Smith, J. Denis (1988). The Sparrows: a Study of the Genus Passer. illustrated by Robert Gillmor. Calton, Staffs, England: T. & A. D. Poyser. ISBN 978-0-85661-048-6.
Pegu sparrow at the Internet Bird Collection Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Khao Yai National Park | 🇹🇭 Thailand | |
| 2 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 3 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 4 | Cat Tien National Park | 🇻🇳 Vietnam |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Phnom Penh | 🇰🇭 Cambodia | |
| 2 | Bangkok | 🇹🇭 Thailand | |
| 3 | Ho Chi Minh City | 🇻🇳 Vietnam |
Rare
Under 5% of wildlife watchers report a Plain-backed Sparrow sighting in Kaeng Krachan National Park on a given day, based on 103 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 232nd most-seen of the 360 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.
May to July
In those months about 10% of wildlife watchers report a Plain-backed Sparrow in Kaeng Krachan National Park on a given day, against under 5% in August to April, the lowest months. Those are among Kaeng Krachan National Park's wettest months, with about 200 mm of rain a month against 30 mm in December.
3rd of 4
Of the 4 parks where we can rate Plain-backed Sparrow sightings, Kaeng Krachan National Park ranks 3rd at under 5%. The best odds are in Khao Yai National Park (Thailand, about 10%) and Doi Inthanon National Park (Thailand, under 5%).
GBIF citizen-science records
It is estimated from how often the Plain-backed Sparrow is recorded against all the birds logged in Kaeng Krachan National Park (103 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.
