▁It ▁is ▁en demic ▁to ▁Mad agas car . ▁ ▁Tax onomy ▁When ▁Gustav ▁Hart la ub ▁first ▁described ▁the ▁litt oral ▁rock ▁thr ush ▁in ▁ 1 8 6 0 , ▁he ▁assigned ▁it ▁to ▁the ▁genus ▁C oss y pha , ▁bel ieving ▁it ▁to ▁be ▁a ▁ro bin - chat . ▁ ▁It ▁is ▁monot yp ic , ▁with ▁no ▁distinct ive ▁sub species ▁in ▁its ▁small ▁range . ▁ ▁Description ▁As ▁with ▁the ▁other ▁rock ▁thr ush es , ▁the ▁litt oral ▁rock ▁thr ush ▁is ▁sex ually ▁dim orph ic ; ▁the ▁male ▁has ▁much ▁more ▁color ful ▁pl um age ▁than ▁the ▁female ▁does . ▁He ▁is ▁pale ▁gray ▁on ▁the ▁head , ▁breast , ▁mant le ▁and ▁wing ▁cover ts , ▁with ▁d ull ▁orange ▁under parts , ▁gray - b rown ▁wings ▁and ▁a ▁dark ▁brown ▁tail . ▁ ▁Hab itat ▁and ▁range ▁End em ic ▁to ▁Mad agas car , ▁the ▁litt oral ▁rock ▁thr ush ▁is ▁found ▁only ▁in ▁the ▁country ' s ▁southern ▁coast al ▁region , ▁from ▁the ▁On il ah y ▁River ▁to ▁Lake ▁An ony , ▁just ▁to ▁the ▁west ▁of ▁T ô lan aro ▁( former ly ▁Fort ▁D au ph in ). ▁ ▁It ▁pre fers ▁eu ph orb ia ▁bush es ▁and ▁low ▁shr ubs ▁on ▁sand y ▁substr ate ▁or ▁cor al ▁rag , ▁and ▁is ▁found ▁at ▁elev ations ▁r anging ▁from ▁sea ▁level ▁to ▁. ▁ ▁Conserv ation ▁and ▁thre ats ▁Although ▁the