Great-billed Parrot Tanygnathus megalorynchos

A large green parrot with a massive red bill and prominent yellow markings on the wings. In flight, shows yellow underwings. Found singly or in pairs or small groups within forest, mangroves, and plantations in lowlands and foothills. Distinguished from Blue-backed and Black-lored Parrots by yellow wing markings. Differs from Blue-naped Parrot in yellow underwings and lack of blue on head, and differs from male Eclectus Parrot in lack of red flank patch. Noisy, with varied calls that include harsh shrieks “KEEK-KEEK-KEEK…”, an ear-splitting, grating “ER,” and a high-pitched, rising whistle “keeYIP.”