The tail feathers are dark blue at their bases, shading to pale blue at their tips.尾羽的根部呈深蓝色，到了尾尖就渐变成淡蓝色。The peacock spread its splendid tail.孔雀展开艳丽的尾羽。It's easily recognised by its bright blue tail feathers.它鲜蓝色的尾羽使人很容易认出它来。The long tail feathers are a dark rich blue.长长的尾羽呈浓重的深蓝色。