Peterson, A. Townsend. (2007). Geographic variation in size and coloration in the Turdus poliocephalus complex: A first review of species limits. University of Kansas Natural History Museum Scientific Papers40: 1-17.[1]Arkivigite je 2008-10-31 per Archive-It
Peterson, A. Townsend. (2007). Geographic variation in size and coloration in the Turdus poliocephalus complex: A first review of species limits. University of Kansas Natural History Museum Scientific Papers40: 1-17.[1]Arkivigite je 2008-10-31 per Archive-It