Hemixos castanonotus
Silhouette: PhyloPic
In 3 days ~20% in a week ~40%
The chestnut bulbul or chestnut-backed bulbul (Hemixos castanonotus) is a songbird in the bulbul family, Pycnonotidae. The species was first described by Robert Swinhoe in 1870. It is found in southern China and northern Vietnam. Its natural habitat is subtropical or tropical moist lowland forests; it primarily resides in the canopy.
It is an omnivore. Formerly, some authorities classified the chestnut bulbul in the genus Hypsipetes and also as a subspecies of the ashy bulbul. Wikipedia →
| # | Park | Country | Daily sighting probability |
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More parks will be added in future updates.
With luck
About 10% of wildlife watchers report a Chestnut Bulbul sighting in Nanjing on a given day, based on 49 verified sightings from GBIF citizen-science data. It is the 66th most-seen of the 162 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.
May–June and November–March
In those months about 10% of wildlife watchers report a Chestnut Bulbul in Nanjing on a given day, against under 5% in April and July–October, the lowest months.
10th of 14
Of the 14 cities where we can rate Chestnut Bulbul sightings, Nanjing ranks 10th at about 10%. The best odds are in Fuzhou (China, about 40%), Changsha (China, about 30%) and Hangzhou (China, about 30%).
Same family: Pycnonotidae
The closest relatives of the Chestnut Bulbul that you can see in Nanjing (family Pycnonotidae, Bulbuls) are Light-vented Bulbul (about 80%), Black Bulbul (about 20%) and Red-whiskered Bulbul (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Chestnut Bulbul is recorded against all the birds logged in Nanjing (49 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.
