All Animals

Grey Duck

Anas superciliosa
Bird

Step into the world of our grey ducks and unlock the wonders of these extraordinary creatures

A close-up image of a grey duck at Hamilton Zoo

The grey duck is similar to a female mallard ducks in appearance, and most birds now show signs of hybridisation with mallards.

Grey ducks are usually found in pairs. They tend to stay in or near rushes at the edge of ponds and lakes and like other Anas species, feed by upending.

Ducklings swim soon after the last one hatches and dries out. They rarely spend more than an hour on the water at a time, with the female brooding them after each swim to restore body heat. 

Until about 1960 grey ducks made up 95% of New Zealand’s dabbling duck population, but now are estimated to number only 500,000 compared with 5 million mallards!  

Quick facts

Distribution:

Endemic to New Zealand

Habitat:

Mainly shallow wetlands and fresh water streams, brackish or saline estuary

Conservation Status:

Endangered

Fun fact

Grey ducks get their food by "dabbling". Dabbling is where the bird plunges it head and neck underwater and upends, raising its rear end vertically out of the water