Sula golden bulbul
The Sula golden bulbul (Hypsipetes longirostris) is a species of songbird in the bulbul family Pycnonotidae. It is endemic to Sula Island (east of Sulawesi) in the Philippines. Its natural habitat is subtropical or tropical moist lowland forests. Taxonomy and systematics
The Sula golden bulbul was originally classified in the genus Criniger, and has also been classified in the genus  Alophoixus. The Sula golden bulbul was formerly considered as conspecific with five other bulbuls, all called the northern golden bulbul before they were all split. References

Sula golden bulbul
Birds of Wallacea
Sula golden bulbul