Petrocossyphus cyanus.1872StillImageDrawing depicting: Monticola solitarius -- Blue Rock Thrush; Blue Rock-Thrush. Alternate name on piece: Petrocossyphus cyanus. [Blue rock-thrush]Gould, John , 1804-1881 (artist)Richter, Henry Constantine , 1821-1902 (artist)Layout sketch, probably by Gould with tightening by RichterSketchy use of watercolor to provide overall expression; buildings of North African appearance in background (consonant with native home of the bird, but not used in published plate).ku-gould:20209https://digital.lib.ku.edu/ku-gould/20209Gould 12OrnithologyOrnithological illustrationelectronicimage/tiffBirds of Great Britain--https://digital.lib.ku.edu/ku-gould/9085--Ellis Aves H131This work is free of known copyright restrictions.