Orthetrum sabina
In 3 days ~70% in a week >90%
Orthetrum sabina, the slender skimmer or green marsh hawk, is a species of dragonfly in the family Libellulidae. It is widespread, being found from south-eastern Europe and North Africa to Japan and south to Australia and Micronesia.
It is a medium-sized dragonfly with a wingspan of 60-85mm. Adults are greyish to greenish yellow with black and pale markings and green eyes. Its abdomen is greenish-yellow, marked with black. It is very similar to Orthetrum serapia in appearance, with both species appearing in northern Australia. Pale markings on segment four of the abdomen do not extend into the posterior section when viewed from above on Orthetrum sabina. Females are similar to males in shape, colour and size; differing only in sexual characteristics. This dragonfly perches motionless on shrubs and dry twigs for long periods. It preys voraciously on smaller butterflies and dragonflies.
The genus name Orthetrum is derived from the Greek ὀρθός (orthos, "straight") and ἦτρον (ētron, "abdomen"), referring to the parallel-sided abdomen of the genus. The species name sabina is possibly named for Saint Sabina.
List of... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 2 | Way Kambas National Park | 🇮🇩 Indonesia | |
| 3 | Royal Bardia National Park | 🇳🇵 Nepal | |
| 4 | Sundarbans National Park | 🇮🇳 India | |
| 5 | Gunung Leuser National Park | 🇮🇩 Indonesia | |
| 6 | Kakadu National Park | 🇦🇺 Australia | |
| 7 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 8 | Ranthambore National Park | 🇮🇳 India | |
| 9 | Chitwan National Park | 🇳🇵 Nepal | |
| 10 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia | |
| 11 | Nagarhole National Park | 🇮🇳 India | |
| 12 | Bako National Park | 🇲🇾 Malaysia | |
| 13 | Kanha National Park | 🇮🇳 India | |
| 14 | Minneriya National Park | 🇱🇰 Sri Lanka | |
| 15 | Litchfield National Park | 🇦🇺 Australia | |
| 16 | Khao Sok National Park | 🇹🇭 Thailand | |
| 17 | Khao Yai National Park | 🇹🇭 Thailand | |
| 18 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 19 | Sepilok | 🇲🇾 Malaysia | |
| 20 | Kinabalu Park | 🇲🇾 Malaysia | |
| 21 | Daintree National Park | 🇦🇺 Australia | |
| 22 | Taroko National Park | 🇹🇼 Taiwan |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Yogyakarta | 🇮🇩 Indonesia | |
| 2 | Kota | 🇮🇳 India | |
| 3 | Dammam | 🇸🇦 Saudi Arabia | |
| 4 | Tasikmalaya | 🇮🇩 Indonesia | |
| 5 | Denpasar | 🇮🇩 Indonesia | |
| 6 | Padang | 🇮🇩 Indonesia | |
| 7 | Ho Chi Minh City | 🇻🇳 Vietnam | |
| 8 | Raipur | 🇮🇳 India | |
| 9 | Hanoi | 🇻🇳 Vietnam | |
| 10 | Thrissur | 🇮🇳 India |
Likely
About 40% of wildlife watchers report a Slender Skimmer sighting in Hanoi on a given day, based on 21 verified sightings from GBIF citizen-science data. It is the 7th most-seen of the 36 insects we can rate there. Over three days the chance rises to about 70%, and over a week to over 90%, if each day is a fresh chance.
August
In that month about 70% of wildlife watchers report a Slender Skimmer in Hanoi on a given day, against under 5% in May–June and December–March, the lowest months. That is one of Hanoi's wettest months, with about 320 mm of rain against 20 mm in February.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Slender Skimmer sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
9th of 73
Of the 73 cities where we can rate Slender Skimmer sightings, Hanoi ranks 9th at about 40%. The best odds are in Yogyakarta (Indonesia, about 60%), Kota (India, about 50%) and Dammam (Saudi Arabia, about 50%).
Same family: Libellulidae
The closest relatives of the Slender Skimmer that you can see in Hanoi (family Libellulidae, Skimmers) are Ditch Jewel (about 40%) and Wandering Glider (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Slender Skimmer is recorded against all the insects logged in Hanoi (21 verified sightings), 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.
