found: Work cat.: Three analytical essays in twentieth-century music, 2005:p. 1 (The blue rock thrush : a case study in Olivier Messiaen's use of birdsong)
found: ITIS, via WWW, Aug. 6, 2008(Monticola solitarius (Linnaeus, 1758) - Blue Rock Thrush, Blue Rock-Thrush)
found: 2007 IUCN red list of threatened species, via WWW, Aug. 6, 2008(Monticola solitarius - Blue Rock-Thrush)
found: Avibase : the world bird database, via WWW, Aug. 6, 2008(Blue Rock-Thrush (Monticola solitarius). Protonym: Turdus solitarius. Latin synonym: Monticola solitaria)
found: Wikipedia, Aug. 6, 2008(The Blue Rock Thrush or Blue Rock-Thrush (Monticola solitarius) is a member of the thrush family (Turdidae))
