Poecile varius
In 3 days ~80% in a week >90%
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 |
Likely
About 40% of wildlife watchers report a Chestnut-bellied Tit sighting in Seoul on a given day, based on 3,434 verified sightings from GBIF citizen-science data. It is the 16th most-seen of the 231 birds we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.
October
In that month about 60% of wildlife watchers report a Chestnut-bellied Tit in Seoul on a given day, against about 20% in June, the lowest month. That is one of Seoul's driest months, with about 55 mm of rain against 360 mm in July.
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.
4th of 14
Of the 14 cities where we can rate Chestnut-bellied Tit sightings, Seoul ranks 4th at about 40%. The best odds are in Sapporo (Japan, about 80%), Gwangju (South Korea, about 50%) and Sendai (Japan, about 50%).
GBIF citizen-science records
It is estimated from how often the Chestnut-bellied Tit is recorded against all the birds logged in Seoul (3,434 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.
