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.
The Crimson Sunbird, "Aethopyga siparaja", is a sunbird. The sunbirds are a group of very small Old World passerine birds which feed largely on nectar, although they will also take insects, especially when feeding young.