Sunbirds and spiderhunters make up the family Nectariniidae which consists of 151 species. I saw my first sunbird one in Singapore in the Botanical Garden (it appeared to be all red), right before we went to Indonesia, and was unable to get a photo of it. I finally got photos of sunbirds in India.
We saw several crimson sunbirds near Kaziranga NP in Assam, near the Diphlu Lodge, where we were staying. Most sunbirds feed largely on nectar, but will also eat spiders and insects and some will also eat fruit. The shape of some flowers prevents access to the nectar, so the sunbirds pierce the flower at the base with their bill and sip the nectar that way. They are distantly related to hummingbirds in the Americas and honeyeaters in Australia, both having nectar feeding lifestyles. Some sunbirds will hover to gather nectar, like a hummingbird, but most perch to do so.
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This one is a little different than the description, but was confirmed as a crimson sunbird on iNaturalist. Perhaps it is a juvenile male. The tail is not very long, it does have white-tipped tail feathers, but also has some red on the breast. |
The crimson sunbird is only about 4.3 inches long, has a thin down-curved bill and a brush-tipped tubular tongue to help it eat nectar. The male has a crimson breast and maroon back, with black malar stripes, a yellow rump, and an olive-green belly. The female has a yellowish breast, an olive green-back and white tips on the outer tail feathers. Most males have a long green-blue tail.
It is a resident of southern Asia from India to Nepal, Bangladesh and Myanmar to Indonesia and Brunei.