It is very distinctive and unique in having a white chest-patch and white on the tail. Like other hummingbirds it takes energy from flower nectar, while the plant benefits from the symbiotic relationship by being pollinated. Collared Incas are extremely quick fliers but occasionally identify themselves in the forest by flashing open their white tails. These large hummers frequent humid montane forests. Both males and females have white outer tail feathers and large chest patches.