Birds in Backyards

White-necked Heron. White-necked Heron.
Photo: K Vang and W Dabrowka © Bird Explorers

White-necked Heron. White-necked Heron.
Photo: Purnell Collection © Australian Museum

White-necked Heron in flight. White-necked Heron in flight.
Photo: K Vang and W Dabrowka © Bird Explorers

Distribution map of Ardea pacifica Distribution map of Ardea pacifica
Map © Birds Australia Birdata

Did you know?

Like other herons, the White-necked Heron has a special hinge mechanism at the sixth vertebra that allows them to rapidly extend their folded neck and so catch unwary prey.

Facts and figures

Research Species: No
Minimum size: 76 cm
Maximum size: 106 cm
Average size: 91 cm
Average weight: 900 g
Breeding season: Mainly September to December.
Clutch size: Up to six, usually three or four.
Incubation: 30 days
Time in nest: 45 days

Calls

A loud croak is uttered as an alarm call. Other gutteral calls are uttered at the nest.

Conservation status

Federal - Secure
NSW - Secure

Status of Australian Birds

Plants associated with this species

Casuarinas, eucalypts, melaleucas; for nesting.

White-necked Heron

Scientific name: Ardea pacifica
Family: Ardeidae
Order: Ciconiiformes

Featured Bird Groups
Water birds

What does it look like?

Description

The White-necked Heron is a large heron with a white head and a long white neck with a double line of black spots running down the front. The upperparts of the body are slate-black, with plum-coloured nuptial plumes on the back and breast during the breeding season. Underparts are grey streaked with white. The bill is black, the naked facial skin is is blue or yellow, the eyes are green, and the legs and feet are black. The White-necked Heron is sometimes known as the Pacific Heron.

Similar species

The Pied Heron, A. picata, is a similar slate-black heron with contrasting white throat and neck, but it is a much smaller (43 cm - 52 cm) bird, with a crested dark cap that extends below the eyes, yellow legs, and a bill that is mostly yellow.

Where does it live?

Distribution

The White-necked Heron is distributed throughout mainland Australia, inhabiting mainly fresh water wetlands.

Habitat

Although White-necked Herons are sometimes seen in tidal areas, most are found in shallow fresh waters, including farm dams, flooded pastures, claypans, and even roadside ditches.

Seasonal movements

White-necked Herons have regular winter or spring movements in many areas, but little is known of their patterns of movement.

What does it do?

Feeding

White-necked Herons feed by wading in shallow water or stalking through wet grass looking for fish, amphibians, crustaceans and insects.

Breeding

White-necked Herons will breed in any month of the year in response to good rain, but most breeding occurs between September and December. The nest is a loose platform in a living tree such as a river red gum near or over water. The nests may be solitary or in loose colonies. Eggs are incubated by both parents.

Living with us

Living with humans

Farm dams and irrigation and drainage ditches provide feeding habitat for White-necked Herons, but drainage of swamps and diversion on natural river flows disrupts breeding activity.

References

Pizzey, G. and Knight, F. 1997. Field Guide to the Birds of Australia. Angus and Robertson, Sydney.

Morcombe, M. 2000. Field guide to Australian Birds. Steve Parish Publishing.

Higgins, P.J. and S.J.J.F. Davies (eds) 1996. Handbook of Australian, New Zealand and Antarctic Birds, Volume 3 (Snipe to Pigeons). Oxford University Press, Victoria.

Slater, P, Slater, P, and Slater, R 1989. The Slater Field Guide to Australian Birds. Lansdowne. Revised edition.

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