Parus superciliosus

Eck, Siegfried, 2006, The Palaearctic Titmouse Species (Aves: Paridae: Parus sensu lato) — A current survey *, Zootaxa 1325, pp. 7-54 : 41

XIII. Parus superciliosus

The position of the White­browed Tit, specially emphasized by Bianchi (1902) with the name “ Poeciloides ”, was also discussed by Kleinschmidt (1911) with no decision regarding the relationships to P. gambeli . To assume conspecificity of these two (Eck 1980) went too far. Knowledge about this group has recently been enhanced by Martens and Gebauer (1993). According to molecular­genetic findings the sympatric species P. gambeli and P. atricapillus are more closely related to one another than either is to P. superciliosus (Gill et al., 2005) , a situation reminiscent of a “triangular relationships” (see page 7).