By
Gloria Seow, Education Committee Vice-Chairperson
Photos by Gloria Seow and Lena Chow
Kranji
Marshes is Singapore's largest freshwater wetlands, serendipitously created
when Kranji reservoir was dammed in the 1970s, which caused the nearby
low-lying areas to become flooded. The marshy vegetation has matured, forming
an attractive habitat for water birds. On the morning of 23 April 2017, we were
privileged to have chirpy Auntie Ee Ling of the Bird Group as our guide. She
was quick to rattle off interesting Kranji Marshes factoids, while directing
our chartered bus that had picked us up at Sungei Buloh to a spot on the Turut
Track. Here, she unlocked a gate to reveal the ecological paradise of Kranji
Marshes’ core conservation area, generally off limits except on NParks approved
walks. It felt special to have the whole place to ourselves.
Even
as our bus was navigating an incredibly narrow lane that led to these marshes,
Auntie Lena had found us an imperious Changeable Hawk Eagle (Nisaetus
cirrhatus). It was perched on a lamp post and was scanning the terrain for
a spot of breakfast. Our streak of raptor sightings continued as we stepped
into Kranji Marshes proper. In a faraway tree, the handsome chestnut-and-white
plumage of a Brahminy Kite (Haliastur indus) advertised its
presence readily. Everyone enjoyed wow views through scopes and binoculars.
Auntie Ee Ling then spotted two Pacific Swallows (Hirundo tahitica) sitting
on a wire which she prompted scoped. She also picked out a lone Tiger Shrike (Lanius
tigrinus) hunting in the distant grassland, and later, an Oriental
Dollarbird (Eurystomus orientalis) high up on some bare
branches.
The handsome chestnut-and-white plumage of the Brahminy Kite advertising its presence at Kranji Marshes.
The
wetland was quiet in comparison as the migratory season had just concluded.
What remained were resident birds. We found several Red-wattled Lapwings (Vanellus
indicus) resting on a log across an idyllic waterbody, and watched
raptly as Little Terns (Sternula albifrons) did their
hover-and-dive routine to expertly capture wriggling fishes. Auntie Lena then
produced a Purple Heron (Ardea purpurea) poking the reed beds
for a tidbit. We also had a regal White-bellied Sea-eagle (Haliaeetus
leucogaster) fly by us. Part of the enjoyment of being out here was
the beauty of the marshes itself. Some ponds were filled entirely with blooming
pink lotuses, while others stretched out in a liquid shimmer into the horizon,
accented by green patches here and there.
All
too soon, we reached the end of the restricted access area. We then passed
through another locked portal into the public part of the marshes. Auntie Ee
Ling gave us a 45-minute free-and-easy slot to explore this area ourselves.
Some parked themselves in the bird hide where there were solid views of common
marshland birds to be had, such as the White-breasted Waterhen (Amaurornis
phoenicurus) and Striated Heron (Butorides striatus).
Others wandered around, encountering birds such as a calling but hidden
Blue-winged Pitta (Pitta moluccensis), Common Tailorbird (Orthotomus
sutorius), and several cuckoo species. Unfortunately, the 10 m high Raptor
Tower was closed for repairs. Back in the hide, the fluty tunes of the Common
Iora (Aegithina tiphia) attracted our attention. Auntie Gloria
duly pointed out the sexual dimorphism of the male and female pair in a nearby
tree.
We
convened to return to our locked-away ‘secret garden’ and meet the bus at the
other end. While crossing a bridge, Auntie Gloria explained that
the bubblegum pink stuff stuck on the walls of the canal were the eggs of
the invasive Golden Apple Snail (Pomacea canaliculata) from South
America. The snail can be eaten if cooked. Upon peering closely, we could see
that many of these snails were grazing just beneath the water surface. Another
cool sighting on the stroll back was that of a Black-winged Kite (Elanus
caeruleus vociferus), a raptor that employs a distinctive hovering flight
pattern that many witnessed. Auntie Ee Ling then picked out a Yellow
Bittern (Ixobrychus sinensis) partially obscured by some
reeds.
All
of us guides were impressed by 9-year old Samuel Lim who could identify some
birds without aid, even though this was practically his first field trip. His
head knowledge of other wildlife was just as jaw dropping. His mum explained
that he has a voracious appetite for nature books, and he actually cajoled his
parents to come for this walk. His enthusiasm seemed to be rubbing off his
6-year old brother Emmanuel. Indeed, there is hope yet for our future
generation of naturalists – both of the citizen science and formally trained
variety.
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