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.
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 on a tree. This species is found in forest and cultivation.
Crimson Sunbirds are tiny, only 11cm 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.
The plant on these photo is Leea indica [Bandicoot Berry], a shrub with greenish-white flowers. This plant is found in India to Indo-China, the Malay Peninsula and Indonesia.