Three-species hybrid bird

Discovered by an amateur wildlife photographer outside of Pittsburgh, Pennsylvania, this three-species hybrid bird (the offspring of a hybrid warbler mother and a chestnut-sided warbler father from a different genus) seems to be the only one of its kind—at least for now.

To correctly identify the bird’s father, the photographer intently listened to the bird’s song, which would ultimately indicate its species—and, just as its father likely had, the bird began singing the song of the chestnut-sided warbler.