Cyornis hainanus
Silhouette: L. Shyamal · PhyloPic
In 3 days ~20% in a week ~50%
The Hainan blue flycatcher (Cyornis hainanus) is a bird in the family Muscicapidae. The species was first described by William Robert Ogilvie-Grant in 1900. It is native to southern China, Hainan and Indochina. Its natural habitat is subtropical or tropical moist lowland forests. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 2 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 3 | Khao Yai National Park | 🇹🇭 Thailand | |
| 4 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 5 | Doi Inthanon National Park | 🇹🇭 Thailand |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Guangzhou | 🇨🇳 China | |
| 2 | Hanoi | 🇻🇳 Vietnam | |
| 3 | Hong Kong | 🇨🇳 China | |
| 4 | Bangkok | 🇹🇭 Thailand | |
| 5 | Phnom Penh | 🇰🇭 Cambodia |
With luck
About 10% of wildlife watchers report a Hainan Blue-Flycatcher sighting in Cuc Phuong National Park on a given day, based on 27 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 70th most-seen of the 159 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.
April and October
In those months about 20% of wildlife watchers report a Hainan Blue-Flycatcher in Cuc Phuong National Park on a given day, against under 5% in May and November–February, the lowest months. July has too few records to rate.
Between 3 and 6 am
Across all the parks we cover, that three-hour window holds the most Hainan Blue-Flycatcher sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is most active around dawn and dusk.
4th of 5
Of the 5 parks where we can rate Hainan Blue-Flycatcher sightings, Cuc Phuong National Park ranks 4th at about 10%. The best odds are in Cat Tien National Park (Vietnam, about 20%), Kaeng Krachan National Park (Thailand, about 20%) and Khao Yai National Park (Thailand, about 20%).
GBIF citizen-science records
It is estimated from how often the Hainan Blue-Flycatcher is recorded against all the birds logged in Cuc Phuong National Park (27 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.
