Black Boubou (Laniarius nigerrimus) [XC97481]
by Charles Davies from Manda Island, Kenya, Kenya (song)
Black Boubou (Laniarius nigerrimus) [XC97479]
by id from Manda Island, Kenya, Kenya (call)
Subspecies
No subspecies.
Laniarius liberatus (Sibley and Monroe 1990, 1993; Dowsett and Forbes-Watson 1993) is now treated as a synonym of erlangeri of Ethiopian Boubou (Laniarius aethiopicus) following Nguembock et al. (2008) who also recommend splitting Laniarius aethiopicus into Ethiopian Boubou (Laniarius aethiopicus), Manda Boubou (Laniarius nigerrimus), Zanzibar Boubou (Laniarius sublacteus) and Tropical Boubou (Laniarius major), proposals that are currently under review by the BirdLife Taxonomic Working Group.
Recent molecular-genetic studies indicate that this species is closest to Red-naped Bush-Shrike (Laniarius ruficeps), the two composing a clade (lineage) that is deeper-branched than, or sister to, Ethiopian Boubou (Laniarius aethiopicus), Turati's Boubou (Laniarius turatii), Southern Boubou (Laniarius ferrugineus), Zanzibar Boubou (Laniarius sublacteus), Swamp Boubou (Laniarius bicolor), Yellow-crowned Gonolek (Laniarius barbarus), Black-headed Gonolek (Laniarius erythrogaster), Papyrus Gonolek (Laniarius mufumbiri) and Yellow-breasted Boubou (Laniarius atroflavus). Was until recently regarded as a subspecies of Ethiopian Boubou (Laniarius aethiopicus). A single bird caught in Somalia in 1989 was described as a distinct species, Bulo Burti Boubou (Laniarius liberatus), but recent analyses of nuclear and mitochondrial DNA reveal that it is a variant of Manda Boubou (Laniarius nigerrimus), and the possibility of its being a hybrid between this species and Red-naped Bush-Shrike (Laniarius ruficeps) rejected as highly improbable.