Anas wyvilliana | Hawaiian duck | koloa
Endemic
Other Names: koloa maoli
The endemic koloa, looks similar to the female mallard, but smaller at around 16 to 22 inches. Male and females look alike with dark bills, dark sides and cinnamon colored tail. One way to spot a koloa is by their teal colored patch of wing feathers. Unlike mallards, koloa mostly live in mountain streams. This species was nearly hunted to extinction before being protected and reintroduced back into the wild. Its greatest threat is through hybridization with introduced mallards.
The map below shows hotspots along our birding trails where you might see this bird. Learn more by visiting our species profile page for koloa maoli.
Hotspots for Hawaiian duck
- Hanalei National Wildlife Refuge | Details for Hanalei National Wildlife Refuge
- Māhā’ulepū Heritage Trail | Details for Māhā’ulepū Heritage Trail
- Salt Pond Beach Park | Details for Salt Pond Beach Park
- Betty Bliss Memorial Overlook | Details for Betty Bliss Memorial Overlook
- Kawainui Marsh | Details for Kawainui Marsh
- James Campbell National Wildlife Refuge | Details for James Campbell National Wildlife Refuge
- Keālia Pond National Wildlife Refuge | Details for Keālia Pond National Wildlife Refuge
- Kanahā Pond State Wildlife Sanctuary | Details for Kanahā Pond State Wildlife Sanctuary
Hanalei National Wildlife Refuge
Wetland
![Hanalei NWR, photo by USFWS](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/Hanalei-NWR_photo-credit-FWS-300x180.webp)
![Hiking Hiking](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/hiking.png)
![Lookout Lookout](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/lookout.png)
![Bathroom Bathroom](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/restrooms.png)
![Interpretive Signage Interpretive Signage](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/signage.png)
![Parking Parking](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/parking2.png)
Māhā’ulepū Heritage Trail
Coastal
![Hiking Hiking](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/hiking.png)
![Parking Parking](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/parking2.png)
Salt Pond Beach Park
Coastal
![Salt Pond Beach Park](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/Salt-Pond-Beach-Park-300x180.jpg)
![Lookout Lookout](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/lookout.png)
![Bathroom Bathroom](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/restrooms.png)
![Parking Parking](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/parking2.png)
![Picnic area Picnic area](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/picnic.png)
![Trash Trash](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/trash.png)
Betty Bliss Memorial Overlook
Wetland
![Betty Bliss Memorial Overlook, photo by USFWS](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/Betty-Bliss-Memorial-Overlook-by-USFWS-300x180.jpg)
![Hiking Hiking](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/hiking.png)
![Lookout Lookout](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/lookout.png)
![Interpretive Signage Interpretive Signage](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/signage.png)
Kawainui Marsh
Wetland
![Kawainui Marsh, photo by DOFAW](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/Kawainui-Marsh-300x180.jpeg)
![Hiking Hiking](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/hiking.png)
![Lookout Lookout](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/lookout.png)
![Parking Parking](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/parking2.png)
James Campbell National Wildlife Refuge
Wetland
![Hiking Hiking](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/hiking.png)
![Parking Parking](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/parking2.png)
Keālia Pond National Wildlife Refuge
Wetland
![Kealia Pond NWR, photo by USFWS](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/Kealia-Pond-NWR-by-USFWS-300x180.jpg)
![Hiking Hiking](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/hiking.png)
![Lookout Lookout](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/lookout.png)
![Bathroom Bathroom](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/restrooms.png)
![Interpretive Signage Interpretive Signage](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/signage.png)
![Parking Parking](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/parking2.png)
![Picnic area Picnic area](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/picnic.png)
![Ranger Station Ranger Station](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/ranger-station.png)
![Trash Trash](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/trash.png)
Kanahā Pond State Wildlife Sanctuary
Wetland
![Kanahā Pond State Wildlife Sanctuary, photo by Jeff Bagshaw](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/Kanaha_Jeff-Bagshaw-300x180.jpg)
![Lookout Lookout](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/lookout.png)
![Parking Parking](https://hawaiibirdingtrails.hawaii.gov/wp-content/uploads/parking2.png)