Ptilostomus
Ptilostomus is a genus of birds in the family Corcoracidae, native to Australia. The sole species in this genus is Ptilostomus after, commonly known as the white-winged chough. These birds are medium-sized, passerine birds with distinctive white patches on their wings and a dark grey body. They possess a long, slightly curved black bill and red eyes. The white-winged chough is found in a variety of woodland and forest habitats across eastern and southern Australia. They are highly social birds, often living and foraging in flocks. Their diet consists mainly of invertebrates, which they find by scratching through leaf litter and soil. Ptilostomus after is known for its cooperative breeding behavior, where non-breeding members of the flock assist in raising the young. They build large, cup-shaped nests from mud. The vocalizations of the white-winged chough are varied and include harsh calls and melodious whistles. They are a common sight in many parts of their range.