Cambodia’s Highland Birding Haven
Kirirom National Park, Cambodia’s first protected area established in 1993, is a highland escape where pine-scented breezes meet misty ridges, creating a unique microcosm for avian wonders. Spanning 35,000 hectares in Kampong Speu Province at elevations up to 710 meters, its mix of introduced conifer forests, evergreen broadleaf woodlands, and fern-filled gullies hosts over 150 bird species—making it a serene, under-visited hotspot for birders seeking a break from the lowland frenzy of Prek Toal or Virachey. In December 2025, with dry trails and crisp mornings (18-25°C), Kirirom’s birding peaks: dawn choruses echo through the pines, and migratory flocks add seasonal flair. Unlike crowded sanctuaries, expect intimate encounters—spot a Chestnut-headed Partridge’s rustle or a Silver-breasted Broadbill’s iridescent flash amid solitude. Entrance is US$5 (cash only); guided tours via the Sam Veasna Center (SVC) or local rangers (US$30-50/day) are essential for access to restricted zones and ethical spotting. Pack binoculars, a field guide (e.g., SVC’s “Birds of Cambodia”), and patience—Kirirom rewards the quiet listener.
Prime Habitats: Elevations Shape the Symphony
Kirirom’s birdlife thrives in layered ecosystems: the pine plantations (French legacy from the 1920s) around Phnom Dat Chivit favor open-country species like Ashy Drongos and Grey-headed Canary-Flycatchers, their calls cutting through the conifer hush. Descend to fern gullies and riparian zones near Chambok Waterfall for understory gems—Puff-throated Babblers flit in bamboo thickets, while Blue-eared Barbets drum from fruiting figs. The grassland edges of Veal Thom offer savanna specials like Siamese Firebacks strutting at dusk. In 2025, SVC’s new acoustic monitoring stations (installed post-2024) track dawn migrations, pinpointing hotspots via apps—December’s clear air amplifies the chorus, with over 50 species audible before 7 a.m.
Target Species: Kirirom’s Feathered Stars
Kirirom punches above its weight with near-endemics and highland rarities—focus on these 10 for a rewarding checklist:
- Chestnut-headed Partridge (Arborophila brunneopectus) – Near-endemic; elusive ground-forager in bamboo undergrowth. Listen for clucks at Veal Thom dawn.
- Silver-breasted Broadbill (Serilophus lunatus) – Jewel-toned blue-green; canopy fruiters near Popokvil—flashy in dappled light.
- Long-tailed Broadbill (Psarisomus dalhousiae) – Noisy flocks in mixed forests; their metallic calls ring from old French roads.
- Indochinese Green Magpie (Cissa hypoleuca) – Emerald streaks; ridges around Chambok—bold and vocal at fruiting trees.
- Asian Golden Weaver (Ploceus hypoxanthus) – Golden flocks weaving nests in grasslands; seasonal breeders in December.
- Great Hornbill (Buceros bicornis) – Massive, whooping; canopy giants at higher elevations—spot via silhouettes at dusk.
- Wreathed Hornbill (Rhyticeros undulatus) – Yellow-throated; waterfall zones—listen for wingbeats like distant thunder.
- Siamese Fireback (Lophura diardi) – Stunning pheasant; Veal Thom edges—males’ iridescence gleams in morning sun.
- White-rumped Shama (Copsychus malabaricus) – Melodious songster; understory serenades near trails.
- Dark-necked Tailorbird (Orthotomus atrogularis) – Tiny, skulking; fern gullies—its sharp “chit-chit” betrays its weave.
December migrants boost counts—Rufous-bellied Eagles soar overhead, while SVC’s 2025 eBird data logs breeding pairs of Orange-necked Partridges.
Top Trails for Twilight Twitches
Kirirom’s 50+ km of trails suit dawn-to-dusk birding; prioritize these:
- Phnom Dat Chivit Summit Loop (6 km, moderate, 3 hours): Ascend pine ridges for magpies and broadbills. Start 5:30 a.m.; elevation 400 feet—new 2025 hides at viewpoints.
- Chambok Waterfall Path (4 km round-trip, easy, 2 hours): Riparian hotspots for hornbills and shamas. Community-led (US$5 fee supports villagers); misty mornings amplify calls.
- Veal Thom Grassland Ramble (8 km, moderate, 4 hours): Open edges for firebacks and weavers. Overnight option (US$50) catches nightjars; 2025 boardwalks reduce disturbance.
- Ou Tasek Falls Trail (11 km round-trip, moderate, 5 hours): Streamside for barbets and tailorbirds. Flat to gentle; pack lunch for pool-side twitches.
SVC guides (book via samveasna.org, US$40/day) know vocalizations; Merlin app aids IDs.
Gear, Greetings, and 2025 Novelties
Lightweight binoculars (8×42), camouflage clothing, and a thermos of tea suit Kirirom’s chill—DEET for leeches, no loud playback (ethical code). Greet rangers with “soksabay dei” (hello) for warm welcomes. In 2025, post-monsoon upgrades include acoustic sensors at Chambok (live data via app) and expanded Por homestays (US$15/night) for dawn access. From Phnom Penh (US$10 minivan, 2 hours), arrive pre-dawn; entry US$5.
Kirirom birdwatching is no safari spectacle—it’s a hushed harmony of highland calls, where pines filter the sun and partridges vanish like whispers. In December 2025, as mist veils the ferns and broadbills gleam, you’ll tune into Cambodia’s avian soul: resilient, rare, and rapturously real. From Kampong Speu trails, let the birds be your guide.