Hawaiian Duck
Hawaiian Duck
100
1 week ago
Points:
100
The Hawaiian Duck (Anas wyvilliana), or Koloa Maoli, is an endangered dabbling duck endemic to the Hawaiian Islands. It resembles a female Mallard but is smaller, darker, and lacks the Mallard's strong sexual dimorphism.
Where to spot
Primarily on the Hawaiian Islands of Kauai and Oahu, with smaller reintroduced populations on Maui and Hawaii. It inhabits wetlands, rivers, and coastal ponds.
How to spot
Look for a medium-sized, mottled brown duck with a dark head and neck, a greenish-black bill, and orange legs and feet. It typically has a blue speculum bordered by white. Distinguish from Mallards by the lack of a bright green head in males and its smaller size.
When to spot
Year-round in its island habitats. Breeding typically occurs from November to June.
Where to spot
Primarily on the Hawaiian Islands of Kauai and Oahu, with smaller reintroduced populations on Maui and Hawaii. It inhabits wetlands, rivers, and coastal ponds.
How to spot
Look for a medium-sized, mottled brown duck with a dark head and neck, a greenish-black bill, and orange legs and feet. It typically has a blue speculum bordered by white. Distinguish from Mallards by the lack of a bright green head in males and its smaller size.
When to spot
Year-round in its island habitats. Breeding typically occurs from November to June.
The Hawaiian Duck faces a severe threat from hybridization with introduced Mallards, which is diluting the genetic purity of the wild Koloa Maoli population.
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Spotted
- Recently spotted
- 245 (Seen in the last 3 months)
- Last spotted
- 1 week ago
Monthly observations
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