Sabah 2025

Sabah, Malaysia August 3 – September 19, 2025 Callyn Yorke

Bulwer’s Pheasant (Lophura bulweri) Borneo endemic, Trusmadi, Sabah 17 August 2025 Callyn Yorke

Introduction

Compared with cosmopolitan Peninsular Malaysia, much of Sabah today is rural and retains the traditional Malay lifestyles reminiscent of Peace Corps days. At that time I was stationed in Kuala Lumpur for three years, teaching zoology at the National University (UKM, 1977-80). Coursework included opportunities for field trips to locations throughout Peninsular Malaysia, e.g. Port Dickson, Fraiser’s Hill, Pasoh Forest Reserve,Taman Negara and Trengganu. All the while I kept an exploratory eye on a map of Malaysia.

Sabah and Sarawak had been on my radar though rather far fetched for a UKM class field trip. The reality was that my students felt going anywhere away from their village or hometown was more stressful than it was interesting or exciting. Field trips with these decidedly provincial folks required from me a considerable dose of cultural sensitivity. For example, many of them traveled with their own food, for fear of being poisoned by strangers. And when we were deep into a Malaysian rainforest, if a leech appeared on a female student, a chorus of screams broke out that could empty a football stadium.

Most of the students came from small villages (kampung-kampung Melayu) on the Peninsula. These were the sorts of places where turn signals were unnecessary because everyone knew where you were going, why you were going there and when you were leaving. The transition from rural life to city life must have been shocking for many of the UKM students. A couple of them meekly revealed to me that, prior to relocating to KL, traveling outside of their village was a rare event. I would have been surprised if any of them had been to the eastern Malaysian states of Sabah and Sarawak.

Aside from my own concerns and those of the UKM administration, I’m fairly certain the students would have survived a field trip to Borneo. They might have even been comforted by the familiar Malay attributes of Sabah, with notable differences in dialect and food. The biggest treat for all of us would likely have been the Bornean superstars, such as the Orangutan and Proboscis Monkey.

Kinabatangan River, Sukau, Sabah 16 September 2025 Callyn Yorke

Eventually I realized that if I was ever going to see the eastern Malaysian states in all of their zoological splendor, that journey would have to be made on my own. In January of 1980, prior to my final semester at UKM, I visited Sabah for the first time. Two of my Peace Corps colleagues had transferred to the UKM Kota Kinabalu campus. One of them, Robert Curry, a mathematician from MIT, had recently taken up birding. Bob introduced me to the local avifauna that included widespread Asian species and notably, endemic subspecies with distinctive plumages and vocal repertoires.

In those days there was precious little reference material for learning field marks of the birds found in Sumatra and Borneo. The first edition of Ben King’s Guide to the Birds of Southeast Asia (1975) provided excellent coverage for Peninsular Malaysia but was understandably deficient in Borneo where endemism is prolific. Bob was quick to point out that subspecies were absent from the numerically systematic list in the King guidebook and suggested they be assigned as a decimal addition in the page margins, e.g. #879.1 Sabah Magpie Robin (Copsychus saularis adamsi).

Sabah Magpie Robin (Copsychus saularis adamsi) Danum Valley, Sabah 31 August 2025 Callyn Yorke

Beyond the capital city of Kota Kinabalu and its rural surroundings, several areas had comparatively high concentrations of endemic species. One historic location was Mt. Kinabalu National Park.

Near the end of my 1980 excursion in Sabah, three other mountaineers and I made a predawn, rope-assisted ascent to the windswept summit of Mt. Kinabalu. In view of the park’s current popularity, I was fortunate to have had a comparatively solitary experience on the jagged peak, which at 4,095 m, is the highest mountain in Southeast Asia. That climb was more of an endurance test than a natural history tour. Endemic birds and other wildlife occurred mainly on the leisurely lower slopes, i.e., between 1,200 m and 1,800 m.

Eyebrowed Jungle Flycatcher (Vauriella gularis) Bornean endemic, Mt. Kinabalu National Park, Sabah 15 August 2025 Callyn Yorke

Presently, every facility of Mt. Kinabalu National Park is in high gear for recreational tourism. Each morning, pedestrians on the main thoroughfare step aside for the parades of minivans packed with climbers. Evidently, the trek to the summit is still rigorous and unforgiving. The park service issues a health advisory – one step short of requiring a medical clearance certificate.

Mt. Kinabalu National Park climbing advisory, 14 August 2025 Callyn Yorke

For the lone traveler the combined cost for food, lodging, guides, permits and transportation from Kota Kinabalu, could easily reach $500 USD per day (1 USD = 4.28 MYR). Lodging in Mt. Kinabalu National Park is usually fully booked several months in advance. The park has become quite the social scene for affluent tourists. Budget travelers, e.g. the younger generation of birders and naturalists, may find affordable homestay accommodations outside the park, though decent lodging is difficult to obtain without advance reservations.

Sunda Laughingthrush (Garrulax palliatus) Endemic to Sumatra and Borneo, Mt.Kinabalu National Park, Sabah 14 August 2025 Callyn Yorke

Similarly, nearby Poring Hot Springs has undergone a major commercial transformation. During my initial visit in 1980, it still retained the sunken concrete boxes with ingenious plumbing built by Japanese occupiers during WW II. All of that is now gone, along with the historical context. I recall soaking in the warmth of the blended hot/cold spring water, in full view of butterflies, hornbills and barbets in the surrounding rainforest. With time, this hidden paradise would be discovered and modernized almost beyond recognition.

Poring Hot Springs, Sabah 16 August 2025 Callyn Yorke

On Saturday morning, August 16, 2025, another birder and I visited Poring Hot Springs. We were a little late for optimal birding. The parking area was nearly full and so was a public swimming pool. What once was a secluded, post-war relic, had become a popular community playground. Paved walkways and fiberglass tubs shaded by stylish gazebos lined the hot springs basin. A new bridge over the central stream provided a setting for selfies. Trash cans dotted the trail leading to the canopy walkway (currently closed for maintenance), along with signs reminding visitors to respect the natural resources. Thankfully, much of the dipterocarp rainforest was intact and had not been converted to another one of the ubiquitous oil palm plantations.

Main stream through Poring Hot Springs, view from the footbridge. 16 August 2025 Callyn Yorke

The remainder of Sabah I had yet to see. The present journey of nearly seven weeks in duration, gave me flexibility for further exploration. But even in that fair span of time, I missed some of the key natural areas, e.g. Tabin Wildlife Reserve and the bird photography hides of Telupid. I could conveniently blame that on lack of lodging availability (mostly due to my habit of seeking last minute bookings), floods, landslides, and regional power outages.

Bornean Bristlehead (Pityriasis gymnocephalus) Borneo endemic, Danum Valley, Sabah 1 September 2025 Callyn Yorke

In the balance, revisiting Sabah as a lone traveler with an unstructured itinerary was definitely a worthwhile and memorable experience. As expected, traveling solo without reservations incurred multiple frustrations and inconveniences. The trade-offs were exciting discoveries and surprise encounters with Bornean endemics and rarities. Some of those birds and mammals were missed during my initial tour in 1980, such as Bulwer’s Pheasant, Bornean Ground Cuckoo, Mantanani Scops Owl, Bornean Bristlehead, Yellow-throated Marten, Marbled Cat and Whitehead’s Tufted Pygmy Squirrel.

Annotated satellite map image showing the principal areas I visited in Sabah, August 3 – September 19, 2025. Location abbreviations are given next to orange circles: DV = Danum Valley; KK = Kota Kinabalu; KNP = Mt. Kinabalu National Park; KRS = Kinabatangan River, Sukau district; LD = Lahad Datu; MB = Meliau Basin; MI =Mantanani Island; PHS = Poring Hot Springs; RDC = Rainforest Discovery Center, Sepilok/Sandakan; TRU = Trusmadi, Crocker Range. See text for further details. Courtesy of Google Maps 2025.

ON LOCATION

Mantanani Scops Owl (Otus mantananensis) Mantanani Island, Sabah 9 September 2025 Callyn Yorke

The following links to Sabah survey locations with annotated bird lists, are given in chronological order (see preceding map). Return visits are included with the main area headings. Throughout the journey, I used field notebooks, a hand-held DSLR camera (Nikon D850 coupled with a Nikon PF 500 mm lens), Zeiss 10 x 42 binocular and a Google Pixel 3X and Google Pixel 7 Pro cell phone for navigation and general photography. I also carried a waterproof (dry) bag and umbrella – both of which were often essential.

Kota Kinabalu (August 3-5; 12 2025)

Lahad Datu (August 6-11, 2025; Aug. 30, 2025)

Mt. Kinabalu National Park (August 13-16, 2025)

Trusmadi Photo Hide, Crocker Range (August 16-17, 2025)

Sandakan and Sepilok (August 20-30; September 19, 2025)

Danum Valley Study Center (August 30-September 1, 2025)

Meliau Basin (September 4-6, 2025)

Mantanani Island (September 9-13, 2025)

Kinabatangan River (September 15-17, 2025)