Carolina parakeet, passenger pigeon, Labrador duck, great auk, pinnated grouse, and, possibly, the Eskimo curlew. Pinnated bitterns are almost exclusively wet season breeders. If flushed, the pinnated bittern gives a rough "rawk-rawk-rawk" call. As typical for Botaurinae (but unlike most herons), the pinnated bittern is a solitary breeder. Its closest living relative is the pinnated bittern ("Botaurus pinnatus") from Central and South America.