Hawaiian Petrel

The Hawaiian petrel or ʻuaʻu (Pterodroma sandwichensis) is a large, dark grey-brown and white petrel that is endemic to Hawaiʻi. The Hawaiian petrel was formerly found on all the main Hawaiian Islands except Niʻihau, but today it is mostly restricted to Haleakalā crater on Maui; smaller populations exist on Mauna Loa on the island of Hawaiʻi, Waimea Canyon on the island of Kauaʻi, Lānaʻihale on Lānaʻi, and possibly Molokaʻi.