Acanthiza is a genus of small birds commonly known as thornbills, which belong to the family Acanthizidae. These birds are primarily found in Australia and New Guinea, inhabiting a variety of environments, including forests, woodlands, and scrublands. They are characterized by their slender bodies, short tails, and distinctive calls. Thornbills are insectivorous, feeding mainly on insects and other small invertebrates. They play an important role in their ecosystems by helping to control insect populations. There are several species within the Acanthiza genus, each exhibiting unique plumage and behaviors, contributing to the rich biodiversity of their habitats.