Species Profile
Whistling Kite
Haliastur sphenurus
Whistling Kite
Quick Facts
Conservation
LCLeast ConcernAlso known as: Whistling Eagle, Whistling Hawk
Think you've spotted a Whistling Kite?
Upload a photo and our AI will confirm it instantly
Confirm with a PhotoGallery
Appearance
The Whistling Kite is a medium-sized raptor with distinctive pale brown plumage. Its wings are long and broad, with pale 'windows' visible in flight and a long, rounded tail. The head is lighter than the body, often appearing almost white.
Their legs are short, featherless, and horn-coloured. Their beak is short and grey, with a distinctive hooked tip, and their eyes are black.
Juveniles have streaked underparts and darker overall colouration. There is little difference between males and females in plumage, though females may be up to 42 percent larger. The bird's appearance remains consistent year-round.
Identification & Characteristics
Colors
- Primary
- Brown
- Secondary
- White
- Beak
- Grey
- Legs
- Grey
Attributes
Understanding Attributes
Rated 0–100 based on research and observation. A score of 50 is average across all bird species. These attributes are relative and don't necessarily indicate superiority.
Habitat & Distribution
Whistling Kites are found across Australia, New Guinea, and parts of Indonesia. They inhabit a wide range of environments, including woodlands, wetlands, grasslands, and coastal areas. These adaptable birds are particularly common near water bodies.
In Australia, they are widespread, occurring in all states and territories. Their distribution may shift seasonally, with some birds moving to coastal areas or towards the north during winter months.
Distribution
Diet
Whistling Kites have a varied diet, including small mammals, birds, rabbits, reptiles, fish, and insects. They are known for their scavenging behaviour, often feeding on carrion and even stealing food from other birds.
These opportunistic hunters also take advantage of bushfires, catching animals fleeing the flames. Live prey is taken most of the year, but carrion becomes more important in winter.
Behaviour
Whistling Kites are often seen soaring in circles on thermal currents, using their keen eyesight to spot prey. They are opportunistic feeders, frequently scavenging alongside roads or following grass fires to catch fleeing small animals.
These birds are generally solitary but may gather in small groups near abundant food sources.
Calls & Sounds
The Whistling Kite's name comes from its distinctive call, a clear, descending whistle often described as 'psee-err'. This vocalisation is frequently heard as the bird soars overhead.
During the breeding season, pairs may engage in duets, with one bird initiating the call and its mate responding.
Nesting & Breeding
Whistling Kites form monogamous pairs and breed between June and December in Australia. They often reuse the same nest site for multiple years, adding to the structure each season.
Nests are large platforms of sticks, lined with leaves and placed high in trees, often near water. The female typically lays 2-3 white or bluish-white eggs with brown spots.
Both parents incubate the eggs for about 35-40 days. Chicks fledge after 44-54 days but may remain dependent on their parents for several more weeks.
Conservation
While the Whistling Kite is currently listed as Least Concern, it faces threats from habitat loss and degradation, particularly in coastal and wetland areas. Pesticide use and secondary poisoning from consuming poisoned prey also pose risks.
Conservation efforts focus on protecting key habitats and reducing chemical use in agriculture.
Elevation
Sea level to 1,400 meters
Additional Details
- Predators:
- Adult Whistling Kites have few natural predators, but eggs and nestlings may fall prey to large birds of prey, snakes, and occasionally feral cats.
Birdwatching Tips
- Look for Whistling Kites soaring high in the sky, especially near water bodies or open grasslands.
- Listen for their distinctive whistling call, which is often given in flight.
- Observe them near recent bushfires or along roadsides, where they scavenge for food.
- In Australia, check coastal areas and inland waterways for the best chances of spotting these birds.
Did You Know?
- Whistling Kites can live for over 20 years in the wild.
- They have been observed using fire to hunt, picking up and dropping burning sticks to spread fires and flush out prey.
- These birds have excellent eyesight, estimated to be 8 times sharper than human vision.
Community Photos
Be the first to share a photo of the Whistling Kite
Upload a PhotoIdentify Any Bird Instantly
- Upload a photo from your phone or camera
- Get an instant AI identification
- Ask follow-up questions about the bird
Monthly Birds in Your Area
- Personalised for your location
- Seasonal tips and garden advice
- Updated every month with new species