Barker, FK; Barrowclough GF; Groth JG (2002). «A phylogenetic hypothesis for passerine birds; Taxonomic and biogeographic implications of an analysis of nuclear DNA sequence data». Proc. R. Soc. Lond. B269: 295-308. doi:10.1098/rspb.2001.1883.
Wooller RD, Calver MC (1981). «Feeding segregation within an assemblage of small birds in the karri forest understorey». Australian Wildlife Research8: 401-10. doi:10.1071/WR9810401.