Leptocoma brasiliana
Silhouette: Sheatherius · PhyloPic
In 3 days ~20% in a week ~50%
Van Hasselt's sunbird (Leptocoma brasiliana), is a species of bird in the family Nectariniidae. It is found in Northeast India, Bangladesh and Southeast Asia. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical mangrove forests.
Van Hasselt's sunbird was described and illustrated in 1760 by the French zoologist Mathurin Jacques Brisson. He introduced the French name "Le grimpereau violet de Brésil" in the mistakenly belief that his specimen had been collected in Brazil. When the German naturalist Johann Friedrich Gmelin revised and expanded Carl Linnaeus's Systema Naturae in 1788 he included Van Hasselt's sunbird using Brisson's account. He placed it with the tree-creepers in the genus Certhia and coined the binomial name Certhia brasiliana. He specified the location as Brazil and cited Brisson's book. In 1825 the Dutch zoologist Coenraad Jacob Temminck described and illustrated Van Hasselt's sunbird based on a specimen that had been collected on the island of Java by Johan Conrad van Hasselt. Temminck coined the binomial name Nectarinia hasseltii, choosing the specific epithet to honour the collector. Under the rules of... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sepilok | 🇲🇾 Malaysia | |
| 2 | Khao Yai National Park | 🇹🇭 Thailand | |
| 3 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 4 | Bako National Park | 🇲🇾 Malaysia | |
| 5 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia | |
| 6 | Danum Valley Conservation Area | 🇲🇾 Malaysia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Kuala Lumpur | 🇲🇾 Malaysia | |
| 2 | Singapore | 🇸🇬 Singapore |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Gembira Loka Zoo | 🇮🇩 Indonesia |
With luck
About 10% of wildlife watchers report a Van Hasselt's Sunbird sighting in Cat Tien National Park on a given day, based on 116 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 136th most-seen of the 244 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 50%, if each day is a fresh chance.
April and June
In those months about 20% of wildlife watchers report a Van Hasselt's Sunbird in Cat Tien National Park on a given day, against under 5% in May, August–September and December, the lowest months.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Van Hasselt's Sunbird sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 6
Of the 6 parks where we can rate Van Hasselt's Sunbird sightings, Cat Tien National Park ranks 3rd at about 10%. The best odds are in Sepilok (Malaysia, about 20%) and Khao Yai National Park (Thailand, about 10%).
Same family: Nectariniidae
The closest relatives of the Van Hasselt's Sunbird that you can see in Cat Tien National Park (family Nectariniidae, Sunbirds and Spiderhunters) are Little Spiderhunter (about 30%), Ruby-cheeked Sunbird (about 20%) and Crimson Sunbird (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Van Hasselt's Sunbird is recorded against all the birds logged in Cat Tien National Park (116 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.
