The document discusses four different species of goldenback birds: 1. The Himalayan goldenback is found in the Himalayas and little is known about this species, requiring more fieldwork. 2. The common goldenback is found across Southeast Asia and is a woodpecker in the family Picidae. 3. The lesser goldenback is also known as the black-rumped flameback and is widely distributed in South Asia, being one of the few woodpeckers seen in urban areas. 4. The greater goldenback, also called the greater flameback or Malherbe's golden-backed woodpecker, is a woodpecker species but does not provide details on its range