Cyornis hainanus
Silhouette: L. Shyamal · PhyloPic
In 3 days ~50% in a week ~80%
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 Kaeng Krachan National Park on a given day, based on 977 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 77th most-seen of the 360 birds we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
November and December
In those months about 40% of wildlife watchers report a Hainan Blue-Flycatcher in Kaeng Krachan National Park on a given day, against under 5% in April–May and July, the lowest months. Those are among Kaeng Krachan National Park's driest months, with about 65 mm of rain a month against 260 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, Kaeng Krachan National Park ranks 2nd at about 20%, level with the leaders once rounded. The best odds are in Cat Tien National Park (Vietnam, about 20%).
Same genus: Cyornis
The closest relatives of the Hainan Blue-Flycatcher that you can see in Kaeng Krachan National Park (genus Cyornis, Blue Flycatchers and Jungle Flycatchers) are Tickell's Blue Flycatcher (about 30%), Chinese Blue Flycatcher (about 10%) and Hill 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 Kaeng Krachan National Park (977 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.
