Orthetrum chrysis
In 3 days ~50% in a week ~80%
The Spine-tufted skimmer, or brown-backed red marsh hawk, (Orthetrum chrysis) is a species of dragonfly in the family Libellulidae. It is widespread in many Asian countries. It is a medium sized dragonfly with dark thorax and blood-red abdomen. It looks very similar to Orthetrum pruinosum in shape and size; but can be distinguished by the color of the abdomen. The abdomen of the female is ochreous brown. It breeds in pools and marshes.
List of odonates of Sri Lanka List of odonates of India List of odonata of Kerala chrysis.html World Dragonflies Animal diversity web Query Results Sri Lanka Biodiversity NCBI Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Bako National Park | 🇲🇾 Malaysia | |
| 2 | Periyar National Park | 🇮🇳 India | |
| 3 | Sinharaja Forest Reserve | 🇱🇰 Sri Lanka | |
| 4 | Khao Sok National Park | 🇹🇭 Thailand | |
| 5 | Khao Yai National Park | 🇹🇭 Thailand | |
| 6 | Taman Negara National Park | 🇲🇾 Malaysia | |
| 7 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia | |
| 8 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 9 | Sepilok | 🇲🇾 Malaysia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Singapore | 🇸🇬 Singapore | |
| 2 | Johor Bahru | 🇲🇾 Malaysia | |
| 3 | Thiruvananthapuram | 🇮🇳 India | |
| 4 | Kozhikode | 🇮🇳 India | |
| 5 | Tuen Mun | 🇨🇳 China | |
| 6 | Hong Kong | 🇨🇳 China | |
| 7 | Kuala Lumpur | 🇲🇾 Malaysia | |
| 8 | Yogyakarta | 🇮🇩 Indonesia | |
| 9 | Kochi | 🇮🇳 India | |
| 10 | Ho Chi Minh City | 🇻🇳 Vietnam |
Possible
About 20% of wildlife watchers report a Brown-Backed Red Marsh Hawk sighting in Khao Sok National Park on a given day, based on 17 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 28th most-seen of the 104 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.
March and December
In those months about 30% of wildlife watchers report a Brown-Backed Red Marsh Hawk in Khao Sok National Park on a given day, against under 5% in June to October, the lowest months. Those are among Khao Sok National Park's driest months, with about 90 mm of rain a month against 280 mm in October.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Brown-Backed Red 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.
4th of 9
Of the 9 parks where we can rate Brown-Backed Red Marsh Hawk sightings, Khao Sok National Park ranks 4th at about 20%. The best odds are in Bako National Park (Malaysia, about 40%), Periyar National Park (India, about 30%) and Sinharaja Forest Reserve (Sri Lanka, about 30%).
Same genus: Orthetrum
The closest relatives of the Brown-Backed Red Marsh Hawk that you can see in Khao Sok National Park (genus Orthetrum) are Orange Skimmer (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 Brown-Backed Red Marsh Hawk is recorded against all the insects logged in Khao Sok National Park (17 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.
