White-winged Duck- Asarcornis scutulata
​Rangge: India and Southeast Asia 
Size: ♂:66–81 cm (26–32 in)
          ♀:66–81 cm (26–32 in)
Weight :♂:  2.94–3.9 kg (6.5–8.6 lb)
             ♀ : 1.95–3.05 kg (4.3–6.7 )lb)
Wing: ♂: 116–153 cm (46–60 in
            ♀: 116–153 cm (46–60 in)
Habitat: wetlands 
Incubation:  33-35days
Eggs: 6-13
Fledge: 14 weeks
Sexual maturity:  12 months
Nest: tree hallows
Social: pairs
Breeding: monogamous 
Movement : sedentary
Food: Aquatic seeds and plants
IUCN: endangered
Subspecies : Monotypic
Longevity: captive: 20 years
                   Wild: 10 years
This endangered duck is native to Southeast Asia from Sumatra north to eastern India. A secretive bird the White-winged duck is nocturnal, feeding on seeds and aquatic plants in slow moving bodies of water.
Although the population has a wide range it is decreasing and very fragmented. The white-winged duck is extinct in parts of its former range including the island of Java and Malaysia. It is estimated that the current population of adults is less than one thousand individuals. The main threat to the species is habitat loss. The development of hydro-electric power and the destruction of large nesting trees are common factors in habitat loss. 
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