(en) Richmond (1897). Descriptions of ten new species of birds discovered by Dr. W.L.Abbott in the Kilmanjaro region of East Africa 1. Auk 14, p.160 pdf. Gearchiveerd op 7 februari 2023.
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(en) Richmond (1897). Descriptions of ten new species of birds discovered by Dr. W.L.Abbott in the Kilmanjaro region of East Africa 1. Auk 14, p.160 pdf. Gearchiveerd op 7 februari 2023.