Thai National Parks

Birds of Thailand

Species of Thailand

Crimson sunbird

Binomial name: Aethopyga siparaja, Thomas Stamford Raffles, 1822

The Crimson Sunbird (Aethopyga siparaja) is a species of bird in the sunbird family which feed largely on nectar, although they will also take insects, especially when feeding 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 most of the time.

Crimson Sunbird is a resident breeder in tropical southern Asia from India to Indonesia and the Philippines. Two eggs or three eggs are laid in a suspended nest in a tree. This species is found in forest and cultivation.

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. 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 the national bird of Singapore.

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Scientific classification

Kingdom
Animalia
Phylum
Chordata
Class
Aves
Order
Passeriformes
Family
Nectariniidae
Genus
Aethopyga
Species
Aethopyga siparaja

Conservation status

Least Concern (IUCN3.1)

Least Concern (IUCN3.1)

Distribution map of Crimson sunbird, Aethopyga siparaja in Thailand

Range map of Aethopyga siparaja in Thailand

Important note; our range maps are based on limited data we have collected. The data is not necessarily accurate or complete.

Special thanks to Ton Smits, Parinya Pawangkhanant, Ian Dugdale and many others for their contribution for range data.

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