Purple Sunbird

The Purple Sunbird is one of the most familiar small nectar-feeding birds of South Asia, common in gardens, hedges, and flowering trees across the Indian subcontinent. Breeding males appear almost entirely black at a distance, but in good light their plumage flashes an intense iridescent purple, blue, and green sheen across the head, back, and throat.

Outside the breeding season, males molt into a duller "eclipse" plumage that resembles the female — yellowish underparts with olive-brown upperparts — but retain a broad blackish stripe running down the center of the throat and belly, a useful clue even when the iridescent colors are absent. Females lack this stripe and are uniformly olive above and pale yellow below.

Despite its small size, the Purple Sunbird is a bold, active bird, constantly flitting between flowering shrubs and hovering briefly to probe blossoms with its slender, downcurved bill.

Key field marks

• Very small size with a thin, strongly downcurved bill adapted for probing flowers
• Breeding male: glossy black appearing purple, blue, or green iridescent in direct light
• Non-breeding/eclipse male: yellow below with a dark central stripe from throat to belly, olive-brown above
• Female: plain olive-brown above, pale yellowish below, no dark throat stripe
• Short tail, constant restless movement between flowers

Similar species

The Purple-rumped Sunbird shows a maroon back and purple rump with a maler more colorful pattern year-round, making eclipse-plumage confusion unlikely. Loten's Sunbird is larger with a longer bill and a maroon breast band. Female sunbirds of different species are notoriously similar and are best separated by range and by the presence/absence of the male's dark throat stripe when present.

Purple Sunbirds occupy an enormous range across the Indian subcontinent, from Pakistan through India, Nepal, Sri Lanka, and Bangladesh, into parts of Southeast Asia and the Arabian Peninsula. They favor open, flower-rich habitats: gardens, scrub, farmland edges, mangroves, and dry deciduous forest, generally avoiding dense unbroken forest.

The species is largely resident, though some local, altitudinal movements occur in response to flowering patterns, with birds concentrating wherever nectar-rich blooms are abundant.

Voice

The song is a fast, high-pitched jumble of sharp notes, often delivered from an exposed perch; the call is a sharp, metallic "tsit" or "chwit" repeated rapidly.

Feeding

Purple Sunbirds feed mainly on nectar, clinging to flowers or hovering briefly like a tiny hummingbird-analogue, and supplement their diet with small insects and spiders, especially when feeding nestlings.

Nesting and breeding

The nest is a distinctive hanging, pear-shaped pouch woven from plant fibers, cobwebs, and debris, suspended from a thin branch or even man-made structures. The female does most of the nest building and incubates 2-3 eggs alone, though both parents help feed the chicks.