Turdus dissimilis
Silhouette: Sharon Wegner-Larsen · PhyloPic
In 3 days ~10% in a week ~20%
The black-breasted thrush (Turdus dissimilis) is a species of bird in the family Turdidae. It is found from north-eastern India to northern Vietnam. Although both male and female birds have the same colour on their lower parts, the upper section of males is mostly black in colour, while females are mostly grey-brown. Thus, the bird's common name refers to the colour of the male bird's breast. They tend to live in forests located at high altitude.
The black-breasted thrush belongs to the order Passeriformes and the family Turdidae. The species is a monotypic taxon – it has been hypothesized that it forms part of a larger superspecies, classified together with Tickell's thrush (T. unicolor) and the grey-backed thrush (T. hortulorum). It was previously thought to have conspecificity with the latter species of thrush. The black-breasted thrush was first described by Edward Blyth in 1847 and was found in the lower Bengal region.
The black-breasted thrush is 22 centimetres (8.7 in) to 23.5 centimetres (9.3 in) long in total, including its tail. Whereas the lower parts are the same colour for both sexes, the upper and middle parts are where they differ. For... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 2 | Namdapha National Park | 🇮🇳 India | |
| 3 | Manas National Park | 🇮🇳 India |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Prague Zoo | 🇨🇿 Czechia | |
| 2 | Tierpark Berlin | 🇩🇪 Germany | |
| 3 | Zürich Zoo | 🇨🇭 Switzerland | |
| 4 | Rákosův pavilon | 🇨🇿 Czechia | |
| 5 | Velemlokárium | 🇨🇿 Czechia |
Rare
Under 5% of wildlife watchers report a Black-breasted Thrush sighting in Hanoi on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 82nd most-seen of the 97 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.
November and December
In those months about 10% of wildlife watchers report a Black-breasted Thrush in Hanoi on a given day, against under 5% in January to October, the lowest months. Those are among Hanoi's driest months, with about 40 mm of rain a month against 320 mm in August.
Between 1 and 4 am
Across all the parks we cover, that three-hour window holds the most Black-breasted Thrush sightings with a recorded time, and about half of them come between 6 pm and 6 am: it is most active around dawn and dusk.
3rd of 3
Of the 3 cities where we can rate Black-breasted Thrush sightings, Hanoi ranks 3rd at under 5%. The best odds are in Guiyang (China, about 50%) and Kunming (China, about 10%).
Same genus: Turdus
The closest relatives of the Black-breasted Thrush that you can see in Hanoi (genus Turdus, Typical Thrushes) are Chinese Blackbird (about 10%) and Japanese Thrush (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Black-breasted Thrush is recorded against all the birds logged in Hanoi (7 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.
