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The Asian Openbill Incursion

 

5 Nov 2024 / Putrajaya Wetland / Sony ILCE-6700 200-600mm

1 Feb 2013 / Putrajaya Wetland / Nikon D7000 + 300mm f4

19 May 2024 / UPM / Sony ILCE-6700 200-600mm f/6.3, 1/125 sec, ISO 100

3 Aug 2024 / Tanjung Karang / 



How a Thailand Native Settled in Peninsular Malaysia

If you have spent any time birding around the vast paddy fields of Peninsular Malaysia over the past decade, you have likely noticed a striking, grayish-white stork wading through the mud. Armed with a unique, gap-billed structure, the Asian Openbill (Anastomus oscitans) has transformed from a rare vagrant into a permanent resident across our agricultural landscapes.

An Unprecedented Range Expansion

Historically, the Asian Openbill’s core range was firmly rooted in the Indian subcontinent and Indochina, with Thailand serving as its primary stronghold in Southeast Asia. In Peninsular Malaysia, the bird was virtually unheard of for decades, with only a handful of sporadic sightings.

That all changed dramatically around 2013. Driven by shifting climate patterns, seasonal droughts, and changing food availability in central Thailand, massive flocks of thousands of Asian Openbills pushed southward down the Thai-Malay Peninsula. The movement was so massive that birds surged all the way through Peninsular Malaysia and crossed the causeway into Singapore.

What initially looked like a temporary, nomadic dispersal soon turned into a permanent natural invasion. The storks found Peninsular Malaysia's vast wetland habitats—particularly the agricultural granaries of Perlis, Kedah, Perak, and Selangor—to be an absolute paradise. Today, large populations are established residents across our west coast paddy systems, with active breeding colonies taking root.

Nature’s Biological Agent in the Paddy Fields

Why did the Asian Openbill decide to stay? The answer lies in its specialized diet and an unexpected ecological partnership with Malaysian rice farmers.

The defining feature of the Asian Openbill is the prominent arched gap between its upper and lower mandibles. Contrary to popular belief, this gap isn't used as a nutcracker; rather, it allows the stork to grip smooth, slippery snail shells underwater while applying precise pressure with the tip of its beak to extract the meat without crushing the shell.

In Malaysia’s rice fields, the storks encountered an endless buffet: the invasive Golden Apple Snail (Pomacea canaliculata). These destructive pests wreak havoc on young rice shoots, costing local agricultural industries millions. The Asian Openbill quickly filled an unoccupied ecological niche, acting as an extremely effective, chemical-free biological control agent. Farmers who once viewed large waterbirds with skepticism now welcome the "openbill patrol" as they clear fields of destructive snails ahead of planting seasons.

Where to Find the Asian Openbill in Peninsular Malaysia

Spotting an Asian Openbill in Malaysia is now easier than ever if you target the right habitats. They prefer flooded farmlands, shallow freshwater marshes, and riverbanks where snails assemble in dense numbers.

Prime hotspots to include on your next birding itinerary:

  • Sekinchan & Tanjung Karang (Selangor): Excellent locations to see hundreds of birds foraging in the open paddy blocks alongside Egrets and Herons.

  • Ulu Dedap & Pulau Bangau (Perak): A critical breeding and foraging hub along the Perak River where colonies nest high in riverine trees.

  • Kubang Pasu & Kuala Kedah (Kedah): The northern rice bowl remains one of the best places to witness thermal-soaring flocks numbering in the hundreds.

Planning your next photography trip or lifelist expedition?

Whether you want to capture the spectacular sight of Asian Openbills thermalling over Tanjung Karang or search for Peninsular Malaysia's deep-forest endemics, we provide tailored, expert-led birding itineraries.

[Get in Touch Today to Book Your Guided Peninsular Malaysia Birding Tour!]

Future Topic:

  1. The Golden Apple Snail Phenomenon: How Asian Openbills Saved Malaysia’s Rice Bowl.

  2. Top 5 Wetland Birding Sites along the West Coast of Peninsular Malaysia.

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Birding Sprint - 25-27 Jun 2026

 

"Thanks again so much for the wonderful week, Weng Chun. Will definitely come with you again one day. We all had a great time" - Damian, Australia

It is always a great feeling when past clients return for round two. Damian and Richard had birded with me at Fraser’s Hill before, but as any birder knows, there are always a few stubborn species that manage to evade you the first time around.

This time, they brought Peter along for the ride, and we designed a high-intensity, 3-day itinerary. The mission: sweep from the foothill forests, cross the coastal mangroves, and climb back up to the mountains to settle some unfinished business.

Day 1: Foothills to the Coast (Hulu Langat to Pulau Indah & Kuala Selangor)

We started early from Kuala Lumpur, heading straight into the lush dipterocarp forests of Hulu Langat for the morning session. We decided to push our luck with a bit of careful, off-trail bushwhacking. It was a short detour, but it paid off immediately when we found a stunning Blyth’s Frogmouth day-roosting quietly in the understory—an absolute masterclass in camouflage.

From the hills, we drove straight down to the coast, stopping by the mangrove patches of Pulau Indah. The humidity was real, but so were the birds. After walking for about an hour along the trail, both a Mangrove Blue Flycatcher and a Mangrove Whistler made excellent, clear appearances right in the scrub. We wrapped up a massive Day 1 by driving up to Kuala Selangor to settle in for the night.

Day 2: Mangrove Jewels to Mountain Air (Kuala Selangor to Fraser's Hill)

We spent Day 2's morning working the coastal habitats of Kuala Selangor. Almost as soon as we got ourselves positioned at the site, the forest handed us a double feature: two Mangrove Pittas showed up almost instantly, giving the guys incredible, unobstructed views.

After a highly successful morning on the coast, we packed up and made the drive up the winding roads to Fraser's Hill, arriving just in time for the afternoon shift. The transition from sweaty coastal mangroves to the crisp, cool mountain air is one of the best feelings in Malaysian birding—and the birds changed just as fast as the temperature.

Day 3: Cleaning Up the Highlands (Fraser's Hill)

We dedicated the final full day entirely to Fraser’s Hill. Since Damian and Richard had been here before, this wasn't about building a generic baseline list—this was about precision target birding. We spent our time tracking down the specific high-elevation specialists that had eluded them on their first trip, while Peter got to experience the pure excitement of the mountain's fast-moving mixed feeding flocks for the first time.

The Night Shift: A 5-Owl Sweep

While our daytime birding was spectacular, the real story of this trip happened after dark. Logging one or two owl species on a short trip is a win, but we went across different habitats, successfully logging five distinct species by the end of the trip (1 species during day time):

* Collared Scops-Owl
* Dusky Eagle-Owl
* Buffy Fish-Owl
* Spotted Wood-Owl
* Barred Eagle-Owl

The Final Tally

By the time we complete Day 3, we had recorded a massive 157 species across the shifting elevations.

The lifer count speaks for itself: Damian picked up 41 lifers to add to his Malaysia list, and Peter walked away with an incredible 80 lifers.

Great birds, great company, and a perfect three days on the trail.





Species seen / heard: Malaysian Eared-Nightjar, Red-wattled Lapwing, Black-winged Stilt, Asian Openbill, Little Heron, Dusky Eagle-Owl, Spotted Wood-Owl, Blue-throated Bee-eater, Pied Triller, Malaysian Pied Fantail, Malayan Partridge, Little Cuckoo-Dove, Raffles's Malkoha, Chestnut-breasted Malkoha, Little Bronze Cuckoo, Large-tailed Nightjar, Blyth's Frogmouth, Little Cormorant, Crested Serpent Eagle, Blyth's Hawk-Eagle, Changable Hawk-Eagle, Black Eagle, Crested Goshawk, Brahminy Kite, Mountain Scops-Owl, Collared Scops-Owl, Barred Eagle-Owl, Orange-breasted Trogon, Red-headed Trogon, Red-bearded Bee-eater, Banded Kingfisher, Stork-billed Kingfisher, White-throated Kingfisher, Collared Kingfisher, Sooty Barbet, Coppersmith Barbet, Black-eared Barbet, Fire-tufted Barbet, Red-throated Barbet, Yellow-crowned Barbet, Lineated Barbet, Black-browed Barbet, Speckled Piculet, Sunda Pygmy Woodpecker, Grey-capped Pygmy Woodpecker, Orange-backed Woodpecker, Greater Flameback, Rufous Woodpecker, Buff-necked Woodpecker, Common Flameback, Lesser Yellownape, Crimson-winged Woodpecker, Laced Woodpecker, Banded Woodpecker, Checker-throated Woodpecker, Black-thighed Falconet, Blue-crowned Hanging Parrot, Long-tailed Broadbill, Banded Broadbill, Rusty-naped Pitta, Mangrove Pitta, Golden-bellied Gerygone, Malayan Cuckooshrike, White-bellied Erpornis, Mangrove Whistler, Dark-throated Oriole, Black-naped Oriole, Black-and-Crimson Oriole, Bar-winged Flycatcher-shrike, Rufous-winged Philentoma, Common Iora, Bronzed Drongo, Lesser Racket-tailed Drongo, Greater Racket-tailed Drongo, Blyth's Paradise-Flycatcher, Sultan Tit, Pygmy Cupwing, Rufous-bellied Swallow, Buff-vented Bulbul, Cinereous Bulbul, Mountain Bulbul, Grey-bellied Bulbul, Black-crested Bulbul, Cream-vented Bulbul, Olive-winged Bulbul, Red-eyed Bulbul, Stripe-throated Bulbul, Yellow-vented Bulbul, Chestnut-crowned Warbler, Mountain Tailorbird, Swinhoe's White-eye, Hume's White-eye, Pin-striped Tit-babbler, Golden Babbler, Black Laughingthrush, Sunda Scimitar-babbler, Grey-throated Babbler, Buff-breasted Babbler, Streaked Wren-babbler, Brown Fulvetta, Mountain Fulvetta, Chestnut-capped Laughingthrush, Blue Nuthatch, Verditer Flycatcher, Pale Blue Flycatcher, Rufous-browed Flycatcher, Indochinese Blue Flycatcher, Mangrove Blue Flycatcher, Lesser Shortwing, White-tailed Robin, Pygmy Flycatcher, Little Pied Flycatcher, Orange-bellied Flowerpecker, Fire-breasted Flowerpecker, Scarlet-backed Flowerpecker, Ruby-cheeked Sunbird, Brown-throated Sunbird, Black-throated Sunbird, Purple-naped Spiderhunter, Little Spiderhunter, Yellow-eared Spiderhunter, Spectacled Spiderhunter, Streaked Spiderhunter, Grey-breasted Spiderhunter, Asian Fairy Bluebird, Pin-tailed Parrotfinch and more.

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Ready to start your own Malaysian birding adventure? Whether you're looking for a specific Pitta, Hornbill, Broadbill, Trogon, Barbet or Woodpecker, let's plan it out, I am ready for your adventure.

Send me a message via WhatsApp at +60183632738 to enquire for birding trips and rates!

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As I continue to immerse myself in the world of birds and nature, I am constantly inspired by the beauty and diversity of the natural world. I am grateful for the opportunity to share my work with others and to educate and inspire through my images. Your support and patience are truly appreciated as I strive to showcase the wonders of wildlife in the most authentic and impactful way possible. Together, we can raise awareness and appreciation for the importance of conservation and preservation of our planet's precious ecosystems. Connect with me today to plan your bespoke birding itinerary. Let's head into the field and find the birds that will become the highlights of your life list. The birds are calling!

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Check out the following bird families:

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Finding the right guide is the most important decision you'll make when planning a birding expedition. If you are currently researching the best local expertise for your Malaysian adventure, you are likely already familiar with the legendary hotspots of Peninsular Malaysia—from the montane magic of Fraser’s Hill and Bukit Tinggi to the ancient rainforests of Taman Negara, the coastal riches of Kuala Selangor, and the accessible birding of Hulu Langat.

For those looking to extend their journey into the wilds of Borneo, I provide specialized guiding to iconic locations including Kinabalu Park, the world-renowned Sepilok and Kinabatangan river, and the high-altitude wonders of Crocker Range.

To help you visualize your next big year or photography trip, I have curated several detailed itineraries. Click the links below to explore my proposed birding adventures and find the route that best matches your target list.

Read more »

Birds of Year 2004



Golden-bellied Gerygone
Taman Wetland Putrajaya
2 Sep 2004 / 4:53pm
Nikon D70 + Sigma 170-500mm
f/6.3, 1/60sec
 



Read more »

Birds of Year 2006

 

Gold-whiskered Barbet
Taman Rimba Ampang, Kuala Lumpur
10 Feb 2006 / 11:11am
Nikon D70 + Sigma 170-500mm
f/9, 1/500sec, ISO 800








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Birds of Peninsular Malaysia

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Birds of Peninsular Malaysia

Wildlife in Peninsular Malaysia

Wildlife in Peninsular Malaysia
A collection of wildlife photographs in Peninsular Malaysia that includes mammals, reptiles and amphibians. Some photographs are taken with camera while some are taken with mobile phone whenever I get the opportunities to shoot while on a guiding assignment.

Insects

Insects
You will see other interesting insects during your birding adventure with me. Here are some of the photos I have extracted from my hard drives..

Butterflies of Peninsular Malaysia

Butterflies of Peninsular Malaysia
Collection of photographs for reference.

Notable Plants While Birding

Notable Plants While Birding
There will be some interesting flora that will definitely catch your attention while going out on a birdwatching trip with me. I am in the midst of compiling all the plants, please return to this website for updates. Thank you.

Southeast Asia Birding

Southeast Asia Birding
Sometimes I accompany my regular guests for birding trips out of Peninsular Malaysia. Check out what we found.
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Welcome to "A Malaysian Birder"

Hi, I’m a licensed guide in Peninsular Malaysia with over 15 years of professional guiding experience and a lifelong passion for birds. My journey began during my university studies in Parks & Recreation Management, leading to a career in environmental education, park management, and guiding. Whether you're targeting Peninsular Malaysia’s deep-forest endemics, seeking elusive species like the Rail-babbler and Malaysian Banded Pitta, or exploring top birding hubs like Fraser's Hill, Taman Negara, and Bukit Tinggi, I design tailored itineraries to match your life-list targets. Explore my trip reports, species galleries, and travel advice below. Planning your next photography or birding expedition? Get in touch to book a custom guided tour.

Equipment Evolution

Equipment Evolution
In the past, I have used Kowa BDXD 8x32 binocular, Zoom H2N recorder, Kowa TSN-501 and my favorite Nikon1 V1 with a 70-300mm lens. This is the lightest setup I have tried and owned. From then onwards, I have used Omicron 8x26 binocular (and i bought 4 units), Leica Ultravid 8x32 binocular, Kowa Spotting Scope TSN773 with 20-60x eyepiece, Panasonic Lumix G7, Panasonic Lumix G9 with a 100-300mm lens and currently experimenting with Sony ILCE-A6700 and Sony SEL 200-600mm F5.6-6.3 G OSS lens.

Bird Watching Tours

There are quite a number of birding groups from Australia, United States and United Kingdom that come over to Malaysia annually visiting the traditional key sites that include Kuala Selangor, Fraser's Hill and Taman Negara. There is not doubt that the 3 sites are the preferred birding sites in Peninsular Malaysia. So if you are coming over for birding and intend to hire a guide, you can send me an email at nature2pixel@gmail.com and go over to posting section to view photos and summary of trip reports with testimonials from past clients.

Besides following the traditional route, I also customized trip according to clients needs, preference and interests. So there are some local patches that I can introduce to all bird watchers, digiscopers and photographers.

Here are a few of my favorite birding spots around Kuala Lumpur.

• Kuala Selangor - the habitats include mangrove forest. Good for woodpecker and kingfisher. Some amount of walking is required on flat terrain.

• Fraser's Hill - one of the traditional key sites for birding in Peninsular Malaysia and still the best place to visit. Elevation between 900 - 1200m above sea level. The species found here are different from the city of Kuala Lumpur. Targets may include Trogon, Woodpecker, Partridge, Laughingthrush, Leafbird, Spiderhunter and Sunbird.

• Hulu Langat - one of the most visited birding spot due to its proximity from the city centre. Walking is required but on easy terrain in this lowland forest. Sometimes need to wait at fruiting trees. Generally a good spot for Broadbill, Kingfisher, and Babbler.

• Bukit Tinggi - An alternative spot if you do not want to spend too long hours travelling to Fraser's Hill. It's about 900m to 1,000m above sea level and you get a combination of lowland and highland species at this elevation. Walking is required but just a short distance. Traditional known for Broadbill, Hornbill, Partridge and Pheasant.

• Gombak-Ampang - Generally recommended for photographers targeting Blue-eared Kingfisher and at times during fruiting season, it attracts many species of Bulbul and Barbet. Located in urban area.

Putrajaya - If you are staying in any hotel in Putrajaya, it's a good place to look for herons, egrets, bittern and storks.

Bird Families

Check the bird families and the taxonomy updates HERE.

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Bird Video

I am also interested to take video of birds. Here are some of my favorite videos for your viewing. Video taken with Nikon1 V1 attached to a Sigma 500mm f4.5 and most of the time iPhone SE through the spotting scope. Editing is done on smartphone Power Director for Android device and I also like the iMovie on iPhone. Enjoy.

Recommended Field Guides & Books

If you are interested to get a copy of field guides to assist you to learn and identify birds in Malaysia. Click the followings to find out more.

March 2024. Fortunate enough to meet 1 of the authors before it was launched in Kuala Lumpur. Another great field guide for all birders who want to get the most updated information about birds of Malaysia.