The Rwenzori double-collared sunbird, also called Stuhlmann's sunbird or the Rwanda double-collared sunbird, is a species of bird in the family Nectariniidae. It is found in the Ruwenzori range of mountains in south central Africa. Its natural habitat is subtropical or tropical dry forests. It is threatened by habitat loss. It is sometimes considered to be a subspecies of the greater double-collared sunbird. Some authors consider this bird to be part of a species complex with Cinnyris afer, where it joins Ludwig's double-collared sunbird and Prigogine's double-collared sunbird. As with other closely related species, each inhabiting different locations, there are subtle similarities and differences between the local populations, and their taxonomic treatment depends on the views of the taxonomist.
Region
Albertine Rift montane forests (Uganda and eastern Democratic Republic of the Congo, extending to the Virunga–Rwenzori region and adjacent Rwanda)
Typical Environment
Occupies montane evergreen forest, forest edges, bamboo and ericaceous zones, and secondary growth with abundant flowering shrubs. It frequents clearings, forest margins, and Afro-alpine transition zones where nectar sources are concentrated. Around villages in highlands, it visits gardens and flowering trees. The species tracks blooming cycles locally and can be common where suitable flowers are available.
Altitude Range
1600–3600 m
Climate Zone
Highland
Ease of Keeping
Beginner friendly: 1/5
This sunbird is a vivid Albertine Rift endemic that often perches to feed rather than hovering continuously, conserving energy at high elevations. Its brush-tipped tongue and decurved bill make it an efficient nectar-feeder and pollinator of Afro-montane plants such as ericas and giant lobelias. Males are strikingly iridescent, while females are much duller, aiding camouflage at the nest. It has been treated variably in a species complex with other double-collared sunbirds.
Temperament
active and territorial
Flight Pattern
short rapid wingbeats with frequent perching; hovers briefly at flowers
Social Behavior
Usually seen singly or in pairs, with males defending rich nectar sources vigorously. Monogamous breeding is typical; the female builds a suspended, pouch-like nest from plant fibers and spider silk. Clutches are small, and the female incubates while the male helps defend the territory.
Migratory Pattern
Resident
Song Description
Song is a quick, tinkling series of high-pitched notes interspersed with squeaky trills. Calls include sharp chips and thin tseets, given frequently while foraging and during territorial chases.
