In the late 1800s, mallards were introduced to Hawaii, and their descendants are now breeding with the native duck, raising concerns about genetic extinction

Hawaiian ducks face a genetic threat from mallard hybridisation across islands. Research shows significant mixing on Oahu, Hawaii Island, and Maui. Kauai retains more native duck genetics, but some mallard ancestry is present. Hybrid populations may remain stable across multiple generations. Conservation efforts must consider genetic factors alongside population numbers.

In the late 1800s, mallards were introduced to Hawaii, and their descendants are now breeding with the native duck, raising concerns about genetic extinction
Hawaiian ducks face a genetic threat from mallard hybridisation across islands. Research shows significant mixing on Oahu, Hawaii Island, and Maui. Kauai retains more native duck genetics, but some mallard ancestry is present. Hybrid populations may remain stable across multiple generations. Conservation efforts must consider genetic factors alongside population numbers.