↑ Alström, P., P.G.P. Ericson, U. Olsson, and P. Sundberg (2006), Phylogeny and classifcation of the avian superfamily Sylvioidea, Mol. Phylogenet. Evol. 38, 381-397.
↑ Ericson, P.G.P., and U.S. Johansson (2003b), Phylogeny of Passerida (Aves: Passeriformes) based on nuclear and mitochondrial sequence data, Mol. Phylogenet. Evol. 29, 126-138.
↑ Fregin, S., M. Haase, P. Alström, and U. Olsson (2012), New insights into family relationships withtrong avian superfamily Sylvioidea (Passeriformes) based on seven molecular markers, BMC Evol. Biol. 12:157.
↑ Fuchs, J., J. Fjeldså, R.C.K. Bowie, G. Voelker, and E. Pasquet (2006a), The African warbler genus Hyliota as a lost lineage trong Oscine songbird tree: molecular support for an African origin of the Passerida, Mol. Phylogenet. Evol. 39, 186-197.
↑ Forrester R.W. & Andrews I.J Eds (2007) The Birds of Scotland Volume 2 Scottish Ornithologists' Club ISBN 978-0-9512139-0-2