Hardhead
Scientific name: Aythya australis
- How weight is recorded: Whole weight
Field notes
Appearance
Males are dark chestnut-brown with a distinctive white eye and glossy dark head; females are duller brown with a paler eye-patch. Both sexes show white underwing patches in flight. Medium-sized diving duck with compact build.
Size and weight
Males 0.6–0.8 kg, females 0.5–0.7 kg; body length 45–51 cm.
Habitat
Hardheads favour permanent and semi-permanent freshwater lakes, swamps, and river systems with open water and dense reed or sedge margins. They prefer lowland wetlands from sea level to 1,500 m elevation.
Distribution
Endemic to inland Australia, widespread across southern and eastern regions from tropical Queensland to Tasmania. Nomadic, shifting between wetlands in response to water availability.
Diet
Primarily aquatic invertebrates (chironomid larvae, dragonfly nymphs, snails) and aquatic plants; dabbles and dives to forage, feeding intensively at dawn and dusk.
Behaviour
Crepuscular forager, most active at dawn and dusk but feeds throughout the day. Highly gregarious outside breeding season, forming tight flocks on open water; pairs are territorial during breeding.
Hunting tips
Scout open water margins and reed-beds at first light; hardheads flight-path regularly between roost and feeding grounds. Approach from downwind along shoreline cover, using water channels and reed-beds for concealment. Most responsive to calling in early morning; pattern movements between dawn flights and daytime resting sites on open water.
Whole weight
This species is logged by whole weight — the animal weighed entire, as taken.
Where it is hunted
Listed as huntable in 1 country in Huntify.
Names in other languages
Current language: en
These field notes are general species knowledge, not legal advice. Always check the current seasons, quotas and firearm rules where you hunt.