Ceyx erithaca, known as the Oriental Dwarf Kingfisher, inhabits the dense forests of Southeast Asia. This vibrant bird boasts a striking blend of bright orange, yellow, and blue plumage. It is known for its swift, agile flight and distinctive call. Primarily insectivorous, it contributes to controlling insect populations.

Ceyx erithaca, commonly known as the Oriental Dwarf Kingfisher, is native to the tropical and subtropical regions of South and Southeast Asia. Its geographical distribution includes countries such as India, Sri Lanka, Nepal, Bhutan, Bangladesh, Myanmar, Thailand, Malaysia, Indonesia, and the Philippines. The species is predominantly found in the Western Ghats and Eastern Himalayas in India, as well as the Sundaland region which encompasses the Malay Peninsula, Borneo, Sumatra, and Java.

The Oriental Dwarf Kingfisher typically inhabits lowland, evergreen, and deciduous forests. It is often found near streams, small rivers, and ponds within dense, humid forest areas, which provide the necessary cover and food resources. The climate in these habitats is generally tropical, with high humidity and substantial rainfall, especially during the monsoon season.

As a small kingfisher species, Ceyx erithaca plays a role in the ecosystem as a predator of small aquatic and terrestrial insects, as well as small vertebrates like frogs and lizards. Its presence indicates a healthy forest ecosystem with adequate water sources. The bird's vibrant plumage and elusive nature make it a key species for birdwatchers and ecotourism in its native range.