The Danger Islands have been identified as an "important bird area" by BirdLife International because it supports Adélie penguin colonies and seabirds.[2] 751,527 pairs of Adélie penguins have been recorded in at least five distinct colonies and, in March 2018, a colony of 1.5 million was discovered.[3][4] According to the March 2018 expedition leader, penguins in this area—which has remained cold—are thriving, whereas on the western side of the Antarctic Peninsula—where warming has occurred—their numbers have been declining.[5]