BLACK-FACED HONEY CREEPER or PO-OULI
Chunky finch-like bird, 14cm. Largely grey-brown with a black face and slightly down-curved beak. Only lives on the slopes of mount Haleakala on Muai, in the Hawaiian island chain, USA, but possibly extinct. Suffers from disease carried by mosquitoes, habitat destruction for farming, people keeping pigs that roam in the forest, and rats eating eggs and nestlings.