Males have black wing feathers, pink wing pits and breast spots that give it its name, while females have brown wings, yellow wing pits and no patches on their chest. The condition, called bilateral gynandromorphism, means the bird is both male and female, with one ovary and one testis. Male red-breasted grosbeaks have larger black feathers, with pink wing pits and a pink splotch on their chest. Males have larger black feathers, with pink wing pits and pink dots on their chest. The bird had not yet developed its breeding plumage, she added, when 'it's going to be even more starkly male, female.'

Source: Daily Mail October 07, 2020 19:45 UTC