Ini nga species ginbahin ha masunod nga subspecies:[ 7]
A. c. atroolivaceus
A. c. beniensis
A. c. cyanopus
A. c. xenicus
↑ 1.0 1.1
"Agelasticus cyanopus " . IUCN Red List of Threatened Species. Version 2012.2 . International Union for Conservation of Nature . 2012. Ginkuhà 24 Oktubre 2012 .
↑ (1998) , website, Zoonomen - Zoological Nomenclature Resource
↑ 3.0 3.1 Lowther, P. E., R. Fraga, T. S. Schulenberg, and S. M. Lanyon (2004) Nomenclatural solution for a polyphyletic Agelaius, Bulletin of the British Ornithologists' Club, vol. 124, no. 3
↑ Gill, Frank, and Minturn Wright (2006) , Birds of the World: Recommended English Names
↑ (2007) , website, Gill & Wright (2006) corrigenda/updates - 21 Septyembre 2007
↑ (2007) , website, Zoonomen - Zoological Nomenclature Resource, 2007.07.31
↑ 7.0 7.1 Bisby F.A., Roskov Y.R., Orrell T.M., Nicolson D., Paglinawan L.E., Bailly N., Kirk P.M., Bourgoin T., Baillargeon G., Ouvrard D. (ed.) (2011). "Species 2000 & ITIS Catalogue of Life: 2011 Annual Checklist" . Species 2000: Reading, UK. Ginkuhà 24 Septyembre 2012 . CS1 maint: multiple names: authors list (link ) CS1 maint: extra text: authors list (link )
↑ ITIS: The Integrated Taxonomic Information System . Orrell T. (custodian), 26 Abril 2011