Aethopyga siparaja
Silhouette: Rachael Joakim · PhyloPic
In 3 days ~30% in a week ~60%
The crimson sunbird (Aethopyga siparaja) is a species of bird in the sunbird family which feed largely on nectar. They may also take insects, especially when feeding their young. Flight is fast and direct on their short wings. Most species can take nectar by hovering like a hummingbird, but usually perch to feed. It is the unofficial national bird of Singapore, as declared by the Nature Society Singapore.
Crimson sunbirds are tiny, only 11 cm long. They have medium-length thin down-curved bills and brush-tipped tubular tongues, both adaptations to their nectar feeding. The adult male has a crimson breast and maroon back, with black malar stripes. The rump is yellow and the belly is olive. The female has an olive-green back, yellowish breast and white tips to the outer tail feathers. In most of the range, males have a long green-blue tail, but A.s. nicobarica of the Nicobar Islands and the former subspecies A. vigorsii (Western crimson sunbird) of the Western Ghats of India lack the long central tail feathers. Their call is chee-cheewee.
The crimson sunbird is a resident breeder in tropical southern Asia from India, through Nepal, Pakistan... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Sepilok | 🇲🇾 Malaysia | |
| 2 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 3 | Royal Manas National Park | 🇧🇹 Bhutan | |
| 4 | Khao Luang National Park | 🇹🇭 Thailand | |
| 5 | Bako National Park | 🇲🇾 Malaysia | |
| 6 | Khao Sok National Park | 🇹🇭 Thailand | |
| 7 | Manas National Park | 🇮🇳 India | |
| 8 | Gunung Leuser National Park | 🇮🇩 Indonesia | |
| 9 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia | |
| 10 | Jim Corbett National Park | 🇮🇳 India | |
| 11 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 12 | Danum Valley Conservation Area | 🇲🇾 Malaysia | |
| 13 | Royal Bardia National Park | 🇳🇵 Nepal | |
| 14 | Kaziranga National Park | 🇮🇳 India | |
| 15 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 16 | Khao Yai National Park | 🇹🇭 Thailand | |
| 17 | Kinabalu Park | 🇲🇾 Malaysia | |
| 18 | Tangkoko Nature Reserve | 🇮🇩 Indonesia | |
| 19 | Way Kambas National Park | 🇮🇩 Indonesia | |
| 20 | Chitwan National Park | 🇳🇵 Nepal | |
| 21 | Namdapha National Park | 🇮🇳 India | |
| 22 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 23 | Kanha National Park | 🇮🇳 India |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Guwahati | 🇮🇳 India | |
| 2 | Dehradun | 🇮🇳 India | |
| 3 | Singapore | 🇸🇬 Singapore | |
| 4 | Kuching | 🇲🇾 Malaysia | |
| 5 | Johor Bahru | 🇲🇾 Malaysia | |
| 6 | Jammu | 🇮🇳 India | |
| 7 | Kathmandu | 🇳🇵 Nepal | |
| 8 | Hanoi | 🇻🇳 Vietnam | |
| 9 | Chandigarh | 🇮🇳 India | |
| 10 | Kuala Lumpur | 🇲🇾 Malaysia |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Bird Paradise | 🇸🇬 Singapore | |
| 2 | Rainforest Wild Asia | 🇸🇬 Singapore |
With luck
About 10% of wildlife watchers report a Crimson Sunbird sighting in Cat Tien National Park on a given day, based on 169 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 117th most-seen of the 244 birds we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
March, June–July and October
In those months about 20% of wildlife watchers report a Crimson Sunbird in Cat Tien National Park on a given day, against under 5% in April and August–September, the lowest months.
Between 2 and 5 am
Across all the parks we cover, that three-hour window holds the most Crimson Sunbird sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is most active around dawn and dusk.
15th of 23
Of the 23 parks where we can rate Crimson Sunbird sightings, Cat Tien National Park ranks 15th at about 10%. The best odds are in Sepilok (Malaysia, about 50%), Cuc Phuong National Park (Vietnam, about 40%) and Royal Manas National Park (Bhutan, about 30%). All parks ranked.
Same family: Nectariniidae
The closest relatives of the Crimson 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 Purple-naped Spiderhunter (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Crimson Sunbird is recorded against all the birds logged in Cat Tien National Park (169 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.
