Researchers at the Powdermill Nature Reserve in Pennsylvania recently came across a “once in a lifetime discovery” – a half-male, half-female rose-breasted grosbeak.
Annie Lindsay and her colleagues at Powdermill Nature Reserve were catching and banding birds with identification tags on September 24, when a fellow researcher called her over via walkie-talkie to supposedly see something extraordinary. The moment she saw her colleague’s find, Annie knew what she was looking at, an extremely rare half-male, half-female creature known as a gynandromorph. The rose-breasted grosbeak exhibited male-characteristic plumage on one half of its body, and female coloration on the other.
