Orthetrum pruinosum
In 3 days ~50% in a week ~80%
Orthetrum pruinosum, the crimson-tailed marsh hawk, is a species of dragonfly in the family Libellulidae. It is a widespread species occurring from west India to Japan and south to Java and the Sunda Islands. A molecular phylogenetics study of Orthetrum dragonflies revealed that Orthetrum pruinosum is a cryptic species.
Young males have red abdomen as in Orthetrum chrysis. Females of both species look similar. It breeds in ponds, lakes and sluggish streams. List of odonates of Sri Lanka List of odonates of India List of odonata of Kerala Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Mudumalai National Park | 🇮🇳 India | |
| 2 | Periyar National Park | 🇮🇳 India | |
| 3 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 4 | Namdapha National Park | 🇮🇳 India | |
| 5 | Tangkoko Nature Reserve | 🇮🇩 Indonesia | |
| 6 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 7 | Khao Yai National Park | 🇹🇭 Thailand | |
| 8 | Kanha National Park | 🇮🇳 India | |
| 9 | Chitwan National Park | 🇳🇵 Nepal | |
| 10 | Sinharaja Forest Reserve | 🇱🇰 Sri Lanka | |
| 11 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 12 | Taroko National Park | 🇹🇼 Taiwan |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Taichung | 🇹🇼 Taiwan | |
| 2 | Jabalpur | 🇮🇳 India | |
| 3 | Taipei | 🇹🇼 Taiwan | |
| 4 | Colombo [Sri Jayawardenepura Kotte] | 🇱🇰 Sri Lanka | |
| 5 | Thiruvananthapuram | 🇮🇳 India | |
| 6 | New Delhi | 🇮🇳 India | |
| 7 | Dehradun | 🇮🇳 India | |
| 8 | Hong Kong | 🇨🇳 China | |
| 9 | Tuen Mun | 🇨🇳 China | |
| 10 | Kathmandu | 🇳🇵 Nepal |
Possible
About 20% of wildlife watchers report a Crimson-Tailed Marsh Hawk sighting in Khao Yai National Park on a given day, based on 25 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 27th most-seen of the 221 insects 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.
September
In that month about 40% of wildlife watchers report a Crimson-Tailed Marsh Hawk in Khao Yai National Park on a given day, against under 5% in February and May, the lowest months. That is one of Khao Yai National Park's wettest months, with about 330 mm of rain against 15 mm in December.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Crimson-Tailed Marsh Hawk sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
7th of 12
Of the 12 parks where we can rate Crimson-Tailed Marsh Hawk sightings, Khao Yai National Park ranks 7th at about 20%. The best odds are in Mudumalai National Park (India, about 30%), Periyar National Park (India, about 30%) and Cuc Phuong National Park (Vietnam, about 30%).
Same genus: Orthetrum
The closest relatives of the Crimson-Tailed Marsh Hawk that you can see in Khao Yai National Park (genus Orthetrum) are Brown-Backed Red Marsh Hawk (about 20%), Blue Marsh Hawk (about 20%) and Slender Skimmer (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Crimson-Tailed Marsh Hawk is recorded against all the insects logged in Khao Yai National Park (25 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.
