Kitsissunnguit consists of a group of low islands with predominantly rocky shorelines and their surrounding waters. Pocket beaches and lagoons are found on the bigger islands, as well as some bays with salt marshes. The Site supports an important number of bird species, being one of the most important breeding and staging sites of Greenland. Arctic terns, king eiders and Atlantic puffins are among the supported species. Arctic foxes present a threat for breeding birds, as individuals move to the islands across the winter ice. Occasionally some remain on the islands when the ice disintegrates in spring and summer, preventing terns from breeding; in some years, the disturbance can cause the Arctic terns to avoid the island. As of 2019, a management plan was being developed, which includes measures to avoid foxes during spring.