Scarlet-chested Sunbird (Chalcomitra senegalensis) [XC425411]
by Bram Piot from Kiang West, Lower River, Gambia (call)
Scarlet-chested Sunbird (Chalcomitra) [XC857195]
by Andr\u00e1s Schmidt from Larabanga, West Gonja, Northern Region, Ghana (song)
Subspecies
May form a superspecies with Hunter's Sunbird (Chalcomitra hunteri) and sometimes regarded as conspecific, but the two are ecologically segregated in area of marginal overlap in eastern Kenya.
Several additional subspecies proposed: adamauae (described from Adamaoua, in north-central Cameroon), considered inseparable from acik; saturatior (from Malanje, in Angola) and inaestimata (Dar es Salaam, in eastern Tanzania), both synonymized with gutturalis; and aequatorialis (Bukoba, in north-western Tanzania) and erythrinae (Trans Nzoia District, in Kenya), both merged with lamperti.
The following 6 subspecies are recognised:
senegalensis (Linnaeus, 1766) - Southern Mauritania and Senegal east to Nigeria.
acik (Hartmann, 1866) - Northern Cameroon, southern Chad, western and south-western Sudan, northern Central African Republic, north-eastern DRCongo and north-eastern Uganda.
proteus (Rüppell, 1840) - South-eastern Sudan (Boma Hills), Ethiopia, Eritrea and northern Kenya.
lamperti (Reichenow, 1897) - Southern Sudan (east of White Nile: Imatong Mts, Leboni Forest), eastern DRCongo (L Albert south to northern L Tanganyika), west, central and southern Uganda and central Kenya south to western Tanzania.
gutturalis (Linnaeus, 1766) - Angola and southern DRCongo east to south-eastern Kenya, Pemba I and Zanzibar, south to central Namibia, northern Botswana, Mozambique, and eastern South Africa (Limpopo Province south to KwaZulu-Natal and northern eastern Cape).
saturatior (Reichenow, 1891) - Angola and southern DR Congo to Namibia and northern Botswana.
BirdLife International Species Factsheet