FWS Focus

Overview

The Hawaiian Duck or koloa, is generally mottled brown and has a green to blue speculum (the distinctive feathers on the secondary wing feathers) with white borders. Adult males tend to have a darker head and neck feathers (sometimes green). Both sexes have orange legs and feet. Females have a dull orange bill. The male koloa is 19 to 20 inches in length while the female is 16 to 17 inches. Their quack is a little softer than the mallard and koloa are not as vocal.

Scientific Name

Anas wyvilliana
Common Name
Hawaiian Duck
FWS Category
Birds
Kingdom

Location in Taxonomic Tree

Genus

Identification Numbers

TSN:

Geography

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