Cormorán Totinegro vs Cormorán de las Bounty

The Little Black Cormorant and Bounty Islands Shag can be distinguished primarily by their habitat and distribution. The Little Black Cormorant is found in a variety of inland and coastal waters, while the Bounty Islands Shag is restricted to the Bounty Islands. Structural differences are minimal, but plumage and behavior may offer additional clues.

Habitat and location are the most reliable indicators: if you are not on the Bounty Islands, you are likely observing a Little Black Cormorant. Structural and plumage differences are subtle and less reliable in the field.

The Little Black Cormorant is widespread in a range of aquatic habitats, including inland rivers and lakes, as well as coastal areas. In contrast, the Bounty Islands Shag is endemic to the Bounty Islands, making its habitat much more restricted and specific.