Poecile varius
In 3 days ~20% in a week ~50%
The chestnut-bellied tit (Sittiparus castaneoventris) is a small passerine bird in the tit family Paridae that is endemic to Taiwan. The chestnut-bellied tit was first described by the English ornithologist John Gould in 1863 and given the binomial name Parus castaneoventris. It was formerly considered as a subspecies of the varied tit but was promoted to species status after the publication of a phylogenetic study in 2014.
The species differs from the varied tit in having underparts of a deep chestnut colour. PARUS (Taiwanese satellite family) Birding In Taiwan: Endemic subspecies of Taiwan birds - first impressions Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Nikko National Park | 🇯🇵 Japan | |
| 2 | Taroko National Park | 🇹🇼 Taiwan |
With luck
About 10% of wildlife watchers report a Chestnut-bellied Tit sighting in Taroko National Park on a given day, based on 163 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 71st most-seen of the 147 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
January
In that month about 30% of wildlife watchers report a Chestnut-bellied Tit in Taroko National Park on a given day, against under 5% in April to October, the lowest months.
Between 6 and 9 am
Across all the parks we cover, that three-hour window holds the most Chestnut-bellied Tit sightings with a recorded time, and about 7 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 parks where we can rate Chestnut-bellied Tit sightings, Taroko National Park ranks 2nd at about 10%. The best odds are in Nikko National Park (Japan, about 30%).
Same family: Paridae
The closest relatives of the Chestnut-bellied Tit that you can see in Taroko National Park (family Paridae, Tits, Chickadees, and Titmice) are Green-backed Tit (about 50%), Coal Tit (about 40%) and Taiwan Yellow Tit (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Chestnut-bellied Tit is recorded against all the birds logged in Taroko National Park (163 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.
