Mrs. Gould’s Sunbird differs in size between sexes: males have a long tail, and nominate males have a violet crown.
Males measure 14–15 cm and females about 10 cm. The male has a long tail; the nominate male has a violet crown.
It inhabits mixed Bluepine forest and city parks, up to 3,600 m, and feeds mainly on nectar, spiders, and insects.
An extinction-risk assessment has not been added yet.
During 52 weekly morning surveys at the Tuensang market in Nagaland from May 2009 to April 2010, researchers recorded 40 Mrs. Gould’s Sunbirds (Aethopyga gouldiae).