A geographic race of the common grackle ranging from New England and the western Appalachians to the Rocky Mountains, distinguished from the purple grackle by its deep bronze back.赤褐色拟八哥，赤褐色鹩哥：普通拟八哥的地理划分种类，分布于从新英格兰和阿拉巴契亚西部至落基山脉的区域内，和紫色拟八哥的不同之处是深赤褐色的背部