Dwarf Cassowary
Casuarius bennetti
A huge flightless bird of hill and montane forest; occasionally in lowland rainforest, especially where other cassowary species are absent. The smallest member of the family. Plumage loose and black in adults, brown in juveniles. Adults have a bright blue neck with a red patch on the lower nape. Also note the low, rounded casque. Very secretive and seldom seen. Forages for fallen fruit on the forest floor. Similar to other cassowary species but smaller in size, with lower casque, lacking wattles and does not normally co-occur.
Identification
The dwarf cassowary is a large bird but is smaller than other living cassowaries (the southern cassowary and northern cassowary). It is between 99 and 150 cm (3 ft 3 in and 4 ft 11 in) long and weighs between 17.6 and 26 kg (39 and 57 lb). It is a flightless bird with hard and stiff black plumage, a low triangular casque, pink cheek and red patches of skin on its blue neck. Compared to other cassowaries, the dwarf cassowary is shorter, with a tarsi length of 24.5 cm (9.6 in), with a slightly smaller bill, at 11 to 12.2 cm (4.3 to 4.8 in). The feet are large and powerful, equipped with dagger-like claws on the inner toe. Both sexes are similar. Females have longer casques, brighter bare skin colour and are larger in size.
Taxonomy
The scientific name commemorates the Australian naturalist George Bennett. He was the first scientist to examine these birds after a few were brought to Australia aboard a ship. Recognising them as a new species of cassowary, he sent specimens back to England, where other taxonomists confirmed his perception. On the west side of Cenderawasih Bay, western Papua, there is a distinctive form that may merit a split. C. papuanus is the tentative name. There are no officially recognised subspecies, however, some authors believe there should be.<p>The Karam or Kalam people of the New Guinea Highlands classify bats and flying birds as one group, yaket, and the dwarf cassowary, a very large, wingless, flightless bird as another, kobtiy. Yaket are bony with wings and fly in the air, while kobtiy are bony without wings and are terrestrial and of the forest. They distinguish kobtiy from other bony, wingless animals because kobtiy are not quadrupedal like dogs and lizards and are not limbless like snakes. (See Kalam languages.)<p>John Gould first identified the dwarf cassowary from a specimen from New Britain, in 1857.
- Scientific name
- Casuarius bennetti
- Authority
- Gould, 1857
- Order
- Casuariiformes
- Family
- Casuariidae
- Genus
- Casuarius
Range and habitat
The dwarf cassowary is distributed throughout mountain forests of New Guinea, New Britain, and Yapen Island, at elevations up to 3,300 m (10,800 ft). In areas without other species of cassowaries, it will live in the lowlands also. Its range of occurrence range is approximately 258,000 km2 (100,000 sq mi).
- Migration
- Resident species
Behavior
The species feeds mainly on fallen fruits or fruits that they pluck from shrubs, and small animals and insects. Dwarf cassowaries use the crest on their head to sort through leaf litter and reveal many sources of food, such as fungi, insects, plant tissue, and small vertebrates, including lizards and frogs. A solitary bird, it pairs only during breeding season. It possibly undertakes seasonal migrations in part of its range.
Conservation
The dwarf cassowary has been classified as Near Threatened by the IUCN from 2004 to 2013 due to pressure by habitat loss, habitat degradation, being hunted for food, and often being kept in captivity. However, the species was downgraded to Least Concern in 2015, as current populations appear to be stable (although population trends remain generally unknown) and there is substantially less hunting pressure than in the past.
- Population trend
- stable
Photos
Distribution
Bird Calls
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