A birder named Stephen Gosser recently took a stroll through the woods in Lawrence County, Pennsylvania, when he heard what he thought was a scarlet tanager.

These colorful songbirds are famously difficult to spot, so Gosser followed the sound of the bird’s cheerful “chick-burr” call to try to get a good look at it.

When the bird finally came into view, Gosser could tell it wasn’t a scarlet tanager. The bird did not have the brilliant red body of a male tanager nor the delicate yellow plumage of a female. This bird had brown wings, a speckled chest, and a patch of red feathers on its throat not unlike that of a rose-breasted grosbeak.

“I was very confused and