Ducks usually wear a staid-looking mottled greyish plumage too, but when their mating season arrives and amorous feelings stir within them, the drakes put on much a bolder garb.
水鴨平日看來老實，色雜帶灰，但繁殖期一來，春情騷動，雄鴨爭奇鬥豔，大玩彩色拼圖。