noun
: comparatively dull plumage usually of seasonal occurrence in birds that exhibit a distinct nuptial plumage ; specifically : dull plumage developed in the adult male following a postnuptial molt — compare nuptial plumage
noun
: comparatively dull plumage usually of seasonal occurrence in birds that exhibit a distinct nuptial plumage ; specifically : dull plumage developed in the adult male following a postnuptial molt — compare nuptial plumage
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012