Tiny, round, short-tailed yellow-bellied bird with a thin curved bill. Males are blue on the back and have bright bare skin around the eye in breeding plumage. Rare Madagascar endemic that is found very locally in eastern and northern rainforest at middle and high elevations. Usually in the canopy of stunted forest along ridgelines. Hyperactive nectar feeder that constantly flits from flower to flower. Call is a series of quiet and very high-pitched “tip” notes. Similar to Common Sunbird-Asity, but has brighter yellow underparts and a smaller, less curved bill. Smaller than Souimanga Sunbird, with a thinner bill and shorter tail.