Rangga Trails Indonesia
Sulawesi, Halmahera & West Papua Birding Expeditions
Explore Sulawesi, Halmahera, and West Papua with Rangga Trails, a specialist birding and wildlife expedition company based in North Sulawesi. Discover endemic birds, Birds-of-Paradise, and authentic wildlife experiences across eastern Indonesia.
Birding in Indonesia’s Eastern Frontier
Eastern Indonesia is one of the world’s most rewarding regions for birding. The islands of Sulawesi, Halmahera, and New Guinea have evolved in isolation for millions of years, creating an extraordinary concentration of endemic birds found nowhere else on Earth.
These regions offer unforgettable experiences for birders of all levels.

Sulawesi Birding
Sulawesi is the heart of Wallacea and home to an exceptional collection of endemic birds


Meet The Founder
Rangga Mamengko (Angga)
Rangga Mamengko, known to many as Angga, grew up in North Sulawesi surrounded by nature, travel, and photography. Inspired by his father, a respected tour guide and professional photographer, he developed a lifelong passion for wildlife and exploration.
After studying Travel Bureau management at university, Rangga expanded his experience through years of fieldwork and expedition operations. He further developed his expertise under the mentorship of Nurlin Djuni, founder of Malia Tours Indonesia, learning the practical realities of organizing birding expeditions across some of Indonesia’s most remote wildlife destinations.
Today, Rangga Trails reflects that journey—combining local knowledge, trusted networks, and a genuine passion for helping travelers experience the extraordinary wildlife of eastern Indonesia.
Sulawesi, Halmahera & West Papua Birding Expeditions
Discover some of Indonesia’s most remarkable birding destinations with a local team shaped by years of field experience across eastern Indonesia. Rangga Trails specializes in birding and wildlife expeditions throughout Sulawesi, Halmahera, and West Papua, offering immersive journeys designed for birders, wildlife photographers, naturalists, and serious nature travelers.
From the forests of North Sulawesi and the endemic-rich habitats of Halmahera to the legendary Birds-of-Paradise of West Papua, our expeditions focus on meaningful wildlife encounters, local knowledge, and carefully crafted itineraries that maximize opportunities in the field.
Featured Birding Expeditions





Why Travel with us?
Local Expertise
Based in North Sulawesi, we possess extensive regional knowledge and strong local networks developed through years of field experience across Sulawesi, Halmahera, and West Papua.
Built on Real Field Experience
Our expeditions are shaped by firsthand experience rather than generic tour templates. Routes, logistics, accommodations, and birding sites are selected based on practical knowledge gained in the field.
Small Groups and Personalized Service
We prioritize quality experiences over volume, allowing greater flexibility and more meaningful wildlife encounters.
Trusted Local Partnerships
Our expeditions are supported by reliable local guides, communities, accommodations, and conservation-minded partners throughout eastern Indonesia.


