Green-backed Woodpecker (Campethera cailliautii) [XC350087]
by James Bradley from Cheringoma, Sofala, Mozambique (call)
Green-backed Woodpecker (Campethera cailliautii) [XC166371]
by James Bradley from Lake Mburo National Park, Uganda (call)
Subspecies
Forms a superspecies with Little Green Woodpecker (Campethera maculosa). Has hybridized rarely with Little Green Woodpecker (Campethera maculosa) in Ghana. Distinctive subspecies permista often thought to be separate species, but interbreeds freely with nyansae in Angola and Zaire.
Proposed subspecies togoensis (Ghana east to southern Nigeria) regarded as synonymous with permista; and kaffensis (south-western Ethiopia) with nyansae; fuelleborni (sometimes misspelt fulleborni), from western Tanzania to Zambia, is also synonymized with nyansae. Orange-naped form "quadrosi", known only from the Mozambique type specimen, is considered to be an aberrant form of loveridgei.
The following 4 subspecies are recognised:
permista (Reichenow, 1876) - Eastern Ghana east to extreme south-western Sudan, south-western Uganda, and south to northern Angola and central Zaire.
nyansae (Neumann, 1900) - South-western Ethiopia, south-western Kenya and north-western Tanzania through eastern Zaire to northern Zambia and north-eastern Angola.
loveridgei Hartert, 1920 - Central Tanzania (Kilosa area) south to extreme eastern Zimbabwe (Mt Zelinda) and Mozambique (south to R Limpopo).
cailliautii (Malherbe, 1849) - Coastal zone from southern Somalia (lower R Jubba and Boni Forest) south to north-eastern Tanzania, including Zanzibar I.