S1: Sun birds are among the smallest of Indian birds.
P : Though they are functionally similar to the humming birds of the New World, they are totally unrelated.
Q : They do eat insects too.
R : They are also some of the most brilliantly coloured birds.
S : sun birds feed on nectar mostly and helped in pollination.
S6: Our common sun birds are the purple sun bird, the glossy black species and purple rumped sun bird, the yellow and maroon species.
The Proper sequence should be: