Aethopyga siparaja
The Crimson Sunbird (Aethopyga siparaja) is an exquisitely colored passerine, a jewel of the tropical and subtropical forests of Asia. Males are instantly recognizable by their brilliant crimson upperparts, dark metallic green crown and tail, and a distinctive bright yellow rump, often accented by a purplish-blue malar stripe and belly. Measuring approximately 11-13 cm in length with a slender, downcurved bill, they are slightly smaller than many New World hummingbirds but belong to the Old W...
Primarily inhabiting tropical and subtropical moist broadleaf forests, woodlands, and gardens, the Crimson Sunbird thrives from lowlands up to elevations of around 1,500 meters. They adapt well to human-modified landscapes, often found in parks, plantations, and even urban green spaces where flow...
Their primary diet consists of nectar, extracted from a wide variety of flowering plants using their long, brush-tipped tongues, supplemented by small insects and spiders gleaned from foliage or captured in flight.
Crimson Sunbirds are diurnal and highly active, spending their days flitting rapidly between flowers in search of sustenance, often roosting communally in dense vegetation at night. Their foraging strategy involves hovering briefly in front of blossoms, much like hummingbirds, to probe for nectar...
The Crimson Sunbird boasts an extensive distribution across South and Southeast Asia, stretching from northeastern India and Bangladesh eastward through Myanmar, Thailand, Laos, Cambodia, Vietnam, and southern China. Its range continues southward through the Malay Peninsula, Singapore, and extens...
Least Concern
- The male's brilliant crimson and iridescent green colors are structural, not pigmented, meaning they are produced by the microscopic structure of the feathers scattering light, making them appear to change with the viewing angle. - Despite their hummingbird-like behavior of hovering to feed on ...