The ten species of spiderhunters are an obscure, little-studied group of small, mostly arboreal birds scattered through the tropical forests of Southeast Asia and some of the Indonesian islands. They feed on spiders and insects. Beaks of all the spiderhunters are thin and downcurved, more or less like those of sunbirds, but more robust. The beak of the gray-breasted spiderhunter is so long and robust that it borders on the grotesque.

Sunbirds can be found in lowland and mountain tropical rainforest, savanna with open woodlands, gallery forests (along rivers in dry country), thornscrub, and mangrove.

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