Birds in Backyards

Black-breasted Buzzard. Black-breasted Buzzard.
Photo: Purnell Collection © Australian Museum

Black-breasted Buzzard. Black-breasted Buzzard.
Photo: Purnell Collection © Australian Museum

Black-breasted Buzzard. Black-breasted Buzzard.
Photo: K Vang and W Dabrowka © Bird Explorers

Distribution map of Hamirostra melanosternon Distribution map of Hamirostra melanosternon
Map © Birds Australia Birdata

Did you know?

Black-breasted Buzzards use stones to open eggs by picking up and dropping a stone onto the egg until it breaks.

Facts and figures

Research Species: No
Minimum size: 50 cm
Maximum size: 60 cm
Average size: 55 cm
Average weight: 1350 g
Breeding season: August to September in south and centre; May to July in north
Clutch size: Two
Incubation: 40 days
Time in nest: 60 days

Calls

Generally silent, but vocal near the nest, with yelps and soft piping.

Conservation status

Federal - Secure
NSW - Vulnerable

Status of Australian Birds

Black-breasted Buzzard

Scientific name: Hamirostra melanosternon
Family: Accipitridae
Order: Falconiformes

What does it look like?

Description

The Black-breasted Buzzard is a large dark raptor (bird of prey) with a very short, square-tipped tail. Long feathers on the nape may be raised in a short crest. White 'bull's eye' marks are seen under the wings, which are long and 'fingered' in flight. The breast is sandy-brown in light-phase birds or dark brown and black in the dark-phase. The tail is short and the wings are longer than the tail when the bird is perched. Females are larger than males. They soar high and, when flying low and hunting, often rock or sway from side to side. This species may also be called the Black-breasted Kite.

Similar species

The white patches in the under-wing are much brighter than in other raptors, such as the Little Eagle, Hieraaetus morphnoides, and the tail is short, unlike the long wedge-shaped tail of the Wedge-tailed Eagle, Aquila audax. It is bigger than the Black Kite, Milvus migrans.

Where does it live?

Distribution

The Black-breasted Buzzard is endemic to Australia (found only there), mainly in the north and in semi-arid and arid central regions. It is rare in eastern, southern coastal or near-coastal mainland.

Habitat
Black-breasted Buzzards are found in lightly timbered plains, open country and tree-lined waterways through inland Australia and in semi-arid or arid regions.
Seasonal movements
Buzzards are rare migrants to coastal or near coastal areas. They are partially migratory in northern Australia and sedentary in the south east, their movements being related to rainfall.

What does it do?

Feeding

Black-breasted Buzzards soar high and glide low, like a harrier, looking for rabbits, ground birds, lizards and carrion (dead animals). They glide at speed and snatch food from the ground, from trees or in the air.

Breeding

Black-breasted Buzzards breed throughout their range, but rarely east of about longitude 148 degrees. They may nest at any time when there is plenty of rain and may not breed at all in drought years. The nest is a platform of large, dry sticks, with smaller sticks on top.The shallow saucer is lined with green leaves. It is placed on a strong limb or fork, often in a tree along a waterway, where the Buzzard has a good view. Both parents incubate, brood and feed the young, tearing up food at the nest.

Living with us

Living with humans
Black-breasted Buzzards are widespread but uncommon. Removal of nesting trees may have affected numbers in the east. They are sometimes hit by cars when feeding on road kill.

References

Hollands, D. 1984. Eagles, Hawks and Falcons of Australia. Nelson, Melbourne.

Marchant, S. and Higgins, P.J. (eds) 1993. Handbook of Australian New Zealand And Antartic Birds Vol. 2: (Raptors To Lapwings). Oxford University Press, Melbourne.

Olsen, P. 1995. Australian Birds of Prey: the Biology and Conservation of Raptors. University of New South Wales Press, Sydney.

Olsen, P., Crome, F. and Olsen, J. 1993. The Birds of Prey and Ground Birds of Australia. Angus and Robertson, and the National Photographic Index of Australian Wildlife, Sydney.

Beruldsen, G 2003. Australian Birds: Their Nests and Eggs. Self-published, Queensland.

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