Tag Archives: petai trail

Petai Trail with the BES Drongos (6 May 2017)

The wind grew stronger as the dark clouds loomed. The meeting point was crowded with people from the approaching rain. Even the resident long-tailed macaques were indoors to seek shelter. It was a quarter to nine when our guides started to worry. Will the trail carry on or will it be cancelled? Just as the clock struck nine, the clouds started to part and the sun shone brightly on MacRitchie Reservoir Park. It was time to commence the trail!

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The trail begins! We take a short journey back in time to talk about MacRitchie’s history (Photo by Nicholas Lim)

Our five nature guides and six participants made their way to the start of Petai Trail for the Bachelor of Environmental Studies (BES) Drongos guided walk. As they began, the team spotted the native red jungle fowl from its distinctive call. Who would have known that such a brightly-coloured and loud animal could be found in our forests?

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Red Junglefowl (Photo by Pang Hui En)

As our guides shared about the history of Macritchie Reservoir Park as a plantation and a kampong¸ they pointed out distinctive plants that have remained through the ages. They included the tall and majestic chewing gum tree (also known as the Jelutong), and the twirling rattan tree.

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Participants and guides under the majestic Jelutong tree! (Photo by Nicholas Lim)

The trail was filled with the sights and sounds of many of Singapore’s native wildlife. Thanks to our nature guides, our team was able to spot and identify a wide diversity of animals such as the pin striped-tit babbler, long-tailed macaques and common sun skink.

As the trail came to an end, the group was greeted by a cool breeze along the reservoir. It had been an exciting and informative trail, with both the participants and nature guides learning more about Macritchie Reservoir Park from each other.

If you are interested to learn more about the wildlife in Macritchie, then join us for a free guided walk at Petai Trail by signing up here. Our friendly nature guides would love to take you on a trail you will not forget!

Words by: Joeline Lim

Rad Reptiles (Part 1): The Specimens

It’s been a pretty wild summer and we just had another great walk last week along the Petai Trail. It was pretty awesome to talk with so many interested Singaporeans about the natural heritage we can find at the Central Catchment Nature Reserve (CNNR).

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Woo, another fun walk! (Photo by Sandra)

As you can probably guess from the title, the theme for this post was inspired by the cool reptiles we managed to spot along the way.

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Photo by Sandra

This critter digging his snout into the ground is most commonly known as the Malayan water monitor (Varanus salvator). Among the largest lizards in the world, you can probably spot this lumbering reptile in areas with dense forest like CNNR and Sungei Buloh. Not just native to Singapore, these reptiles are commonplace throughout Southeast Asia and can even be found in urban areas [1].

Their abundance has largely been attributed to the adaptability of this cunning creature. Though it is a primarily terrestrial species (lives mainly on the land like us homo sapiens), it has been found to climb trees and swim in the reservoirs, using it’s flattened tail to propel itself forward like a tadpole. With its ability to climb and even dive underwater, few animals are safe from its jaws. From insects (probably what this particular one is searching for) to crabs scurrying about in the mangroves to birds resting on a perch, they have been noted to consume almost anything they can get their claws on [2].

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Peek a boo. (Photo by Sandra)

The next reptile that one of our guides spotted was the Buffy Fish Owl (Ketupa ketupu). Hang on a minute, that’s a bird not a reptile! Well, a Cool Science Fact to blow your friend’s mind: birds are actually classified under reptiles. Part 2 of Rad Reptiles will be explaining why so keep your eyes peeled for it!

Now, back to the Buffy Fish Owl. Though you can only see its speckled brown back in the picture above, the smallest of the fish owls can be distinguished by it’s brilliant yellow eyes and adorable ear tufts that are usually tilted at 45 degrees [3]. Since they are largely nocturnal, it can be difficult to spot owls at daytime when they are usually resting silently in trees, an indistinguishable shape on the tree. However, birders have reported an encouraging increase in local sightings of this elusive fish owl in the recent years [4]. If you haven’t spotted one, there are always pictures. Check out this awesome one of the infamous one-eyed Buffy Fish Owl [5]!

As you can probably guess from its name, it feeds exclusively on aquatic creatures such as fish. Because of their special diet, they aren’t like your typical owl. Unlike the snowy owl (Harry Potter’s tragically dead pet), the Buffy Fish Owl does not fly silently. They don’t need to since their prey (fish) are unlikely to be able to hear them anyway. Another unique behaviour of the fish owls are that instead of swooping down to catch their prey like we so often see on documentaries, they actually wade into shallow waters to catch their prey [6]. Pretty cool, huh?

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Photo by Sandra

Last of the reptile species we spotted is the Abbott’s babbler (Malacocincla abbotti). Named after the Lieutenant Colonel who discovered it, they are one of the more common babbler species still found in Singapore. While majority (well, three of the five) babbler species such as the short-tailed babbler (Malacocincla malaccensis) are predominantly found within relatively undisturbed forests (mature secondary and primary), the Abbott’s babbler are habitat generalist. This means that they have been spotted to use disturbed habitats like regenerating secondary forest (like the forest along Petai Trail) [7].

Babblers are one of the harder bird species to identify since they are rather small (usually the size of the iPhone 6). The easiest way to identify a babbler is by its distinctive call. The Abbott’s babbler is known by its characteristic wee-woo-wee call. [8]

Well, that’s all for now. Do keep out for Part 2 where we will discuss why birds are considered reptiles, about their evolution from dinosaurs and why some scientists stuck a plunger on a chicken’s butt for science reasons.

  1. Baker, N. (n.d.). Malayan Water Monitor. Ecology Asia. Retrieved Aug 1, 2016, from http://www.ecologyasia.com/verts/lizards/malayan_water_monitor.htm 
  2. Tan, R. (2001). Malayan Water Monitor Lizard. Naturia. Retrieved Aug 1, 2016, from http://www.naturia.per.sg/buloh/verts/monitor_lizard.htm 
  3. Ho, HC (n.d.). Close Encounters with Owls of Singapore. Nature Watch. Retrieved Aug 1, 2016, from http://habitatnews.nus.edu.sg/pub/naturewatch/text/a051a.htm 
  4. OwYong, A. (2016) First known nesting record of the Buffy Fish Owl. Singapore Bird Group. Retrieved Aug 3, 2016, from
    https://singaporebirdgroup.wordpress.com/tag/buffy-fish-owl/ 
  5. Seng, A & Loei, J. (2015). Encounter with a one-eyed Buffy Fish-owl. Bird Ecology Study Group.  Retrieved Aug 3, 2016, from http://www.besgroup.org/2015/07/11/encounter-with-a-one-eyed-buffy-fish-owl/
  6. Royal Society SEARRP. (n.d.). Buffy Fish Owl (Ketupa Ketupu). Stability of Altered Forest Ecology. Retrieved Aug 4, 2016, from http://www.safeproject.net/animal-sightings/buffy-fish-owl-ketupa-ketupu/ 
  7. Yong, DL. (2009). Persistence of Babbler (Timaliidae) Communities in Singapore Forests. Nature in Singapore 2009, 2, 365-371.  
  8. kh. (n.d.). Babblers. Singapore Birds. Retrieved Aug 4, 2016, from http://singaporebirds.blogspot.sg/2012/07/babblers.html

 

Words by Mel 

All trained up and ready to GUIDE

Photo by Jacqueline Chua

Our public walks are right around the corner, and we have been tirelessly retraining our volunteer teams over the past two weekends to provide higher quality guiding for all of you. A lot has changed along the Petai Trail, with new additions and some passings, so come with us to know even much more!

A delightful sight

Malayan Flying Lemur. Photo by Aw Jeanice

For the first time on the Petai Trail, we caught sight of the Malayan Flying Lemur (Galeopterus variegatus), which is a misnomer for not only is not a lemur, it also does not fly! The more accurate common name is the Sunda Colugo. The Sunda colugos are usually mottled grey in colour but color variants exists. The one we documented is a brown variant with reddish to orange brown fur. Feel free to share your photos with the BES Drongos if you have seen any colugos along the Petai Trail!

Follow that monkey, indeed

Geater Racket-Tailed Drongo (Dicrurus paradiseus)
Greater Racket-tailed Drongos. Photo by Aw Jeanice

The namesake of our guiding group, the greater racket-tailed drongos (Dicrurus paradiseus), were sighted following a group of macaques around. When it comes to food, these extremely intelligent birds have a few tricks up their wings!If you are wondering why they do that, you can check out our previous post to learn more about these clever and sneaky creatures!

Eulogies to our glorious Asam tree

Photo by Aw Jeanice
The Great Asam tree, now dead. Photo by Aw Jeanice

Over the course of the past few months, we have seen a rise in the number of trees that have succumbed to termites’ insatiable demand for wood. The magnificent Asam gelugur (Garcinia atroviridis) has its bark stripped off and branches bare, although it still looks undeniably beautiful. We here at Drongos are going to miss telling how the ripe fruits of this tree, ‘Asam Keping’, are used in making our yummy curries. Both the massive Chestnut tree (Castanopsis schefferiana) and the endemic bat laurel (Prunus polystachya) tree were also severely damaged by the termites which come and go, leaving only wreckage and darkbrown trails of their poop!

Many people still do not know how to differentiate termites from ants, but we don’t blame them. They look remarkably similar and their size range is comparable to ants. However, termites are in fact more closely related to cockroaches (order Blattodea) than ants (order Formicidae)!

If you wish to know more about them, simply come on any of our trails. Don’t hover over the sign up link there (→) anymore – click it, you won’t regret it! Even our BES freshmen of class 2019 who joined us had fun! And when you see us on the Petai Trail and are interested to share with other people about our guided walks, feel free to ask us for a name card freshly printed for you!

Photo by Jacqueline Chua
BES Freshmen. Photo by Jacqueline Chua

Check out our flickr page for more photos taken by our photographers Jacqueline Chua, Emmanuel Goh, Teo Rui Xiang and myself, Aw Jeanice!

Our First Trail Season: Highlights

A few months ago, the BES Drongos was merely an idea to bring the public around a nature reserve in Singapore to emphasise the importance of nature and let them experience natural spaces for themselves. Now, we are a volunteer group of 25 Bachelor of Environmental Studies students who are proud to call ourselves the BES Drongos nature trail guides. We spent months organising ourselves through recee trails and concluded our first ever trail season last month after taking eight groups of trail participants onto the Petai Trail!

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The BES Drongos committee AY2014/2015!

As a guiding group, we are still young and have much to learn about how the public interacts with nature – what’s interesting to us as nature lovers and scientists-in-training may not engage families, young children or people who are there to take selfies photographs.

 “When you get caught up in the things that went wrong, always think about how we started with nothing.”
– Jacqueline, our research officer

This trail season, we took seven groups of trail participants onto the Petai Trail at MacRitchie Reservoir Park/Central Catchment Nature Reserve. Mother Nature doesn’t take cues for scheduling according to our walks. Our first ever opening walk day on 4 October was rained out, despite a full turnout from the participants who had signed up. Nevertheless, we were lucky to have been able to allow all walks after that to continue as expected!

4 Oct – it rained 😦

11 Oct

12 Oct

18 Oct 

Image credit: © NUS OSA 2014 | Photography by Clement Hong

25 Oct

Image credit: © NUS OSA 2014 | Photography by Clement Hong

1 Nov 

9 Nov 

15 Nov 

We were glad to have interested participants come on our trails who enjoyed exploring and finding out about nature as much as we do! Some of our participants came from abroad, and they brought with them interesting stories about other nature walks back in their home country and the kinds of animals they have seen.

PGP Walk

Each of the walks was an exchange of knowledge and wonderment, as we continued to learn about the wildlife in our nature reserve and broaden our perspectives about what it means to live in a city that claims to be fully urbanised, but has pockets of nature worth preserving.

For instance, we experienced some kind of (nerdy) joy when we managed to overturn common misconceptions about forests: tropical rainforest soils are actually nutrient poor because of heavy rainfall leaching away the nutrients. Therefore, plants like the leaf litter plant (Agrostistachys indica) to flourish because of their clever way of trapping leaf litter and absorbing nutrients from this decomposing matter through its rootlets.

Leaf Litter Plant

We also spotted lots of variable animals in the nature reserve! We have talked about the Greater racket-tailed drongo, the long-tailed macaque, the Asian softshell turtle and common sun skink in this earlier post.

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The greater racket-tailed drongo, our nameksake!

While on our recce walk with the Toddycats, we spotted an ornate coraltail dragonfly and two venomous snakes! The Blue Malayan Coral snake and the Wagler’s pit viper (which we also later saw once more on the trail with public participants) were rare finds that we got really excited about and blogged here.

Wagler's Pit Viper
Wagler’s pit viper… look at those ominous eyes

We also encountered on our public walks some new animals that we hadn’t seen before, such as this pin-striped tit babbler:

Pin-striped tit babbler peeking out at us!

Pin-striped tit babbler. Photo credit: Tanvi of Saving Macritchie

On this same walk, we encountered some crimson sunbirds, the unofficial national bird of Singapore!  Tanvi, the young creator behind the blog Saving MacRitchie, was a participant on this same walk and these photos were taken by her.

And, we’ve captured some footage of a pair of greater racket-tailed drongos along the Petai trail, how awesome is this? Note the tail flicks!

We hope that we’ve touched the lives of the people who have come on the trail with our stories of the animals and plants that are found along the Petai Trail in the secondary forest of MacRitchie. Our guides have learned a lot about environmental education, whether it is storytelling to engage an audience or public speaking practice. We are infinitely glad to have the support of our BES office in NUS, our readers of this blog and followers on our Facebook page and everyone who has helped to support us in one way or another.

Let us know if you came on the trail and have something to share about your experience! Mail us at besdrongos@gmail.com or drop us a comment on our Facebook page!

The BES Drongos will be resuming guided Petai trail walks in 2015, so until then, we wish you happy holidays and a happy new year!

Words by: Judy Goh

Variable Anim…Drongo!

Hello everyone! The BES Drongos recently conducted our last training walk before the official opening for public trail walks.

Look at all the ready faces!

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Ready to Rumb…Guide!

As with every walk, we see different things and it’s part of the reason why these walks are exciting because you never know what you will see! Animals aren’t stationary, like many of us who constantly check the fridge for something to eat. They are in constant motion and we cannot guarantee that you will definitely see an animal during our walks. They could be sleeping, feeding, hunting for prey… at any point in time as you’re walking along the Petai Trail boardwalk, which is a singular route that you can take along the edge of the forest that will minimise your disturbance to the quiet nature reserve.

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Oooo, what’s that?

However, the wonders of reading mean that even if you could not spot them on our walks, you can read all about what it’s like to experience them here! This post is on Variable Animals, animals that you might see along the walks – but have unpredictable behaviour and roam all over the nature reserve, unlike plants which are stationary and usually can be found in the same place from one week to the next.

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Our mascot bird!

This is our namesake bird, the Greater Racket-tailed Drongo (Dicrurus paradiseus). These birds are common in forested areas and have two distinctive elongated tail feather bare shafts. When they are in flight, it looks like they’re being chased by a pair of carpenter bees!

We call ourselves the Drongos because these birds, like us, are both noisy and clever. They can not only mimic calls of other birds very well, they also use this unique ability to steal food from other creatures. How do they do so? Well, they can use alarm cries known to, perhaps, pigeons to scare them away, stealing what food they have left behind. Scheming, aren’t they? This looting behavior is known as kleptoparasitism.

This video below shows how a clever fork-tailed Drongo, not the same species as the ones found here, steal food from a group of Meerkats!

This is not the only interesting foraging behavior they show. They have also been seen following in the trails of troops of monkeys to eat the insects that these monkeys stir up in their wake. In fact, our slogan, “Follow that monkey” is inspired by this sneaky behavior.

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The Long-tailed Macaque (Macaca fascicularis) is another animal that practices Kleptoparasitism and more often than not, they steal from us! I’m sure everyone has been warned of the practice not to bring along food or plastic bags on the trail (if you have not, please read our Essential Information page for trail etiquette pointers). This is because the BES Drongos, along with people who live close to the habitats of the macaques in Singapore as well as those who frequent these places, have observed the macaques’ behaviour of having their belongings snatched away by these fleet-footed creatures.

These Old World monkeys are intelligent – they have even learned to use rocks as tools to crack open the shells of crabs to eat them! This gives rise to their other common name, the crab-eating macaque. Why crabs? These macaques originally thrived in the mangroves of Singapore where crabs are a common food source. Gradually, their populations have spilled into more forested settings, like the Central Catchment Nature Reserve.

Macaques are also a species that like to roam around the edge of their habitat. Since Singapore’s forest cover has diminished over the years, these macaques have increasingly smaller areas to forage for food, and thus, they turn to urban areas. Many people, at the sight of an adorable-looking wild animal, reach for food to feed it. However, by regularly feeding these macaques, they have learnt to associate humans with food. Some of them have abandoned their usual foraging behaviours because humans subsidise them with food! The food you give them are not in their regular diet and might make them sick. So, the next time you are faced with a macaque, please keep your distance and refrain from feeding it!

Mothership

This huge turtle you see here is the Asian Softshell Turtle (Amyda cartilaginea). This particular creature is fondly referred to as the “Mother-ship” by the BES Drongos. Why? As it is observed that wherever it goes, a trail of Red-eared Sliders (Trachemys scripta elegans) seem to follow. It brings to mind a giant Mother-ship spaceship with the smaller spacecrafts swerving behind. DA DA DADADADAAAAADA DA…

Well, moving on…like the Red-eared Sliders, this species is not native to Singapore. It could have been brought over to Singapore to be boiled for soup. Yikes! Furthermore, since they are considered a delicacy in many Asian countries, their populations have been dropping. In fact, it is classified as Vulnerable under the IUCN (International Union for Conservation of Nature) Red List. So, the next time you are at a Chinese restaurant, maybe you can order lotus root soup instead of turtle soup.

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Slinky skink

Lastly, this Common Sun Skink (Eutropis multifasciatus) is another cold-blooded creature you can often see basking under the sunlight along the boardwalk. As you can observe from this photo, they have a glossy, somewhat angular body with smaller legs. This feature, along with the fact that they have no pronounced neck, helps differentiate them from true lizards (Family: Lacertidae). They are also remarkably pretty under the morning sun with glints of auburn and bronze gleaming off their scales.

Like the “lizards” we find at home, or rather more accurately Geckos (Family: Gekkonidae), these skinks are known to practice Autotomy. Doesn’t sound familiar? Well, word comes from the Greek words “auto-“ meaning self- and “tome” meaning severing. I’m sure, all of you have seen, at one point or another, a clever gecko escaping leaving its wiggling tail behind to distract its predator. The Common Sun Skink is also known to exhibit this behavior but it doesn’t grow back perfectly. So, don’t go trying any experiments!

Well, as a familiar bunny goes, That’s all folks! I hope you have enjoyed reading about the interesting animals you can see along our trail. With the start of the Opening Walks, hopefully some of you guys will actually get to see some of these critters.

We are fully subscribed for this season but do come and join us for our next upcoming season in January. We look forward to see you then!