Whistling Kite

1. Distinctive underwing pattern with pale “windows” and dark outer feathers

2. Bent “M-shaped” wing profile when soaring

3. Loud descending whistle call, often followed by chattering notes

Whistling Kites are opportunistic feeders, taking live prey such as fish, mammals, birds, reptiles, amphibians, crustaceans, and insects, but also scavenging carrion, especially in winter. They are known to patrol roads for roadkill, pirate food from other birds, and even force waterbirds to regurgitate their catch. They sometimes hover at the edge of grass fires to snatch fleeing prey and, remarkably, have been documented intentionally spreading fire by carrying burning sticks to new areas. During the breeding season (mainly June–October in the south, February–May in the north), pairs build large stick nests high in trees near water, often reusing and enlarging the same nest each year. Clutches usually contain 2–3 eggs, with chicks fledging after 44–54 days and remaining dependent for another 6–8 weeks. Whistling Kites are relatively social for raptors, sometimes gathering in loose groups where food is abundant, especially during winter or nomadic movements.

Whistling Kites are widespread across mainland Australia (uncommon in Tasmania), New Guinea, and New Caledonia. They inhabit open woodlands, farmland, wetlands, and are almost always found near water-rivers, lakes, estuaries, and coastlines. They are often seen perched on dead trees or power poles near water, or soaring lazily in circles above open country. While generally sedentary, some populations are nomadic or migratory, moving in response to food availability or seasonal changes.