North American dark bluish-gray gallinule. 北美深蓝灰色的水鸡。
Bluish-gray whiting of California coast. 加利福尼亚海岸蓝灰色的石首鱼。
Bluish-gray sandstone used for paving and building. 兰灰色砂岩,用于铺路和建筑。
Bluish-gray nuthatch with reddish breast; of northern coniferous forests. 胸部略带红色的蓝灰色币鸟;产于北方松林。
Bluish-gray nuthatch with black head and white breast; of eastern North America. 头部为黑色胸部为白色的蓝灰色币鸟;产于北美洲东部。
Any of several tiny North American birds of the genus polioptila, having bluish-gray and white plumage, a long tail, and a small, slender bill. 蚋鹩一种灰翼莺属的北美洲小鸟,具有蓝灰色间白的羽毛,长尾和小而细的喙。
Of eastern North America having a bluish-gray head and mostly green body. 产于北美洲东部,头部为蓝灰色,身体大部分为绿色。
Large American heron having bluish-gray plumage. 美洲大型鹭,蓝灰色羽毛。
Diving ducks of North America having a bluish-gray bill. 蓝灰色嘴的北美洲潜鸭。
Winter mornings in many wood-burning valley towns are now shrouded in a bluish-gray haze. 目前,许多烧木材的河谷城镇,在冬季早晨经常缭绕着蓝灰色的烟雾。
Bluish-gray North American hawk having a darting flight. 飞起来很快的蓝灰色北美鹰。