(en) Gary Voelker, Martim Melo et Rauri C. K. Bowie, « A Gulf of Guinea island endemic is a member of a Mediterranean-centred bird genus », Ibis, vol. 151, no 3, , p. 580–583 (DOI10.1111/j.1474-919X.2009.00934.x, lire en ligne, consulté le )
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(en) Gary Voelker, Martim Melo et Rauri C. K. Bowie, « A Gulf of Guinea island endemic is a member of a Mediterranean-centred bird genus », Ibis, vol. 151, no 3, , p. 580–583 (DOI10.1111/j.1474-919X.2009.00934.x, lire en ligne, consulté le )