Haliastur

The genus Haliastur is a small group of medium-sized birds of prey in the kite family (Accipitridae), known for their broad wings, soaring flight, and opportunistic feeding habits. The genus includes just two living species: the whistling kite (Haliastur sphenurus) and the brahminy kite (Haliastur indus). Both birds are widespread in Australia, South and Southeast Asia, and parts of the Pacific region, often seen soaring gracefully over coastal areas, rivers, wetlands, and open woodlands.

What makes the Haliastur genus stand out among raptors is its members’ adaptability and broad diet. Unlike the more specialized eagles or falcons, Haliastur kites are known for being scavengers and opportunistic hunters, feeding on everything from dead fish and roadkill to insects, small mammals, reptiles, and even carrion. They are often spotted gliding with ease on warm thermals, searching the landscape below for easy meals. Their flight style is buoyant and relaxed, and they’re equally skilled at soaring high or swooping low over water.

The whistling kite, found mostly in Australia and New Guinea, is named for its distinctive high-pitched, descending whistle, which it often gives while flying. It has brown and buff plumage with a pale head and underparts, and when seen from below, its outstretched wings show a fingered appearance, giving it an elegant silhouette in flight. The whistling kite is also known to engage in unusual behavior, such as dropping burning sticks to spread grass fires — a clever trick that flushes out prey and is a rare example of tool use in birds.