Cyornis hainanus
Silhouette: L. Shyamal · PhyloPic
In 3 days ~40% in a week ~70%
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 |
Possible
About 20% of wildlife watchers report a Hainan Blue-Flycatcher sighting in Khao Yai National Park on a given day, based on 381 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 88th most-seen of the 278 birds we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
December and January
In those months about 30% of wildlife watchers report a Hainan Blue-Flycatcher in Khao Yai National Park on a given day, against under 5% in April to September, the lowest months. Those are among Khao Yai National Park's driest months, with about 20 mm of rain a month against 330 mm in September.
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.
Among the best
Of the 5 parks where we can rate Hainan Blue-Flycatcher sightings, Khao Yai National Park ranks 3rd at about 20%, level with the leaders once rounded. The best odds are in Cat Tien National Park (Vietnam, about 20%) and Kaeng Krachan National Park (Thailand, about 20%).
Same genus: Cyornis
The closest relatives of the Hainan Blue-Flycatcher that you can see in Khao Yai National Park (genus Cyornis, Blue Flycatchers and Jungle Flycatchers) are Hill Blue Flycatcher (about 20%) and Javan Blue Flycatcher (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Hainan Blue-Flycatcher is recorded against all the birds logged in Khao Yai National Park (381 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.
