rock thrush
noun
1- an Old World thrush found in mountains and rocky habitats, with a grey or blue head and typically orange underparts矶鸫。
1.1
- Genus Monticola, family Turdidae: several species, including the blue rock thrush (M. solitarius), the male of which is entirely slate-blue.矶鸫属, 鸫科：数种, 包括蓝矶鸫（拉丁名M. solitarius）, 雄性蓝矶鸫为全身暗蓝灰色。