middle course of Bahr el Ghazal, South Sudan.
Race ochrogaster sometimes considered a separate species, differing from nominate in its ochreish-yellow vs whitish-grey ear-coverts (2); much yellower underparts from throat to lower belly (2); more olive, less grey flanks (ns); less pronounced grey crown (1); longer tail (effect size in males 1.25, score 1); and slightly lower-pitched voice (1)#R; this score of 7 suggests species status vs nominate but characters not all so distinctive against other taxa, voices of which are poorly known. Nevertheless, plumage differences between the four groups involved fairly high, so races benguellensis and ruthae may form another species and roseicrissa and marwitzi a third. In recent analysis of mitochondrial phylogeny, nominate race, ochrogaster and roseicrissa comprised a clade that included also E. melpoda, which is sympatric with present species and is clearly a distinct species; benguellensis and ruthae comprised another, multi-species clade, with closest relatives nominate race, ochrogaster and roseicrissa and also E. melpoda, E. troglodytes, E. rhodopyga and E. rufibarba. Further study required. Six subspecies recognized.
Food and feeding
Status and conservation
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