Archive for the 'Conservation' Category

Java Sparrow conservation

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The Java Sparrow (Padda oryzivora) is indigenous to Java and Bali, from where it spread throughout the tropical world as a result of deliberate release and escape of captive birds (left).

In its home country of Java, the highest concentration of the sparrow is around the Prambanan Temple area in Yogyakata. This temple, the largest Hindu temple complex in Indonesia, was built during the Sanjaya Dynasty around 732 and is currently designated a UNESCO World Heritage Site.

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As a heritage site the complex is regularly maintained. The surrounding vegetation as well as any growths on the temple walls are cleared. Nests of these sparrows among the archeological complex are similarly removed. Such maintenance obviously affects the nesting sites of these sparrows.

The continued capture of the birds for the cage bird trade again has an effect on the overall population. Kutilang Indonesia Foundation, an NGO, has initiated a conservation programme to ensure the survival of these beautiful Java Sparrows. One of its activities has been the provision of artificial nest boxes to give alternative nesting sites (left).

In 2007 two pairs of birds actually occupied these boxes and successfully raised a total of seven chicks, a sure sign of success for the efforts of the Indonesian NGO.

Image of the birds-nesting box by Sunaring Kurniandaru, image of Java Sparrow (top) courtesy of Peter Ericsson.

Artificial nesting cavities for hornbills

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Hornbills nest in cavities that develop naturally in old and dead trees. These birds are not capable of excavating them, maybe only in enlarging the entrance and the inside. However, such trees are never plentiful in a healthy forest. In urban areas dead trees are not tolerated as they pose a danger to life and limbs. Old trees with naturally developing large cavities are also deemed potentially dangerous. Due to this shortage in nesting cavities, there is always a fierce competition whenever there is one available.

On the offshore island of Pulau Ubin where most of our Oriental Pied Hornbills (Anthracoceros albirostris) are found, and there are about 20 birds or so, there seems to be no problem at the moment. With an increase in population, competition for nesting cavities will invariable develop.

Two pairs of these hornbill have moved to Changi on mainland Singapore. They have started breeding, although they have so far been unsuccessful in raising any chicks - see 1, 2, 3, 4, 5.

Limited number of these birds are also found inland (1, 2).

The Singapore Hornbill Project has been experimenting with nesting boxes at the Jurong Bird Park. Because these birds are caged, they are receptive to these boxes and are breeding inside. These boxes are now being tried in Pulau Ubin under natural conditions (top).

In Thailand, nesting cavities are excavated from pieces of tree trunks to specifications, hauled up along the trunk to be firmly attached to the tree (below left). These have proven successful. The image below (right) shows the Great Hornbill (Buceros bicronis) making use of such a contraption to breed.

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Image of nesting box at Pulau Ubin by Angie Ng, those from Thailand courtesy of Prof Pilai Poonswad, Hornbill Research Foundation.

Monitor lizards at the Sungei Buloh Wetland Reserve

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The Malayan Water Monitor (Varanus salvator) has made Sungei Buloh Wetland Reserve its home. Once relatively scarce, it is now common to see them along the main paths, in ponds and even around the entrance, so much so that the lizard is a minor attraction (above).

The lizard is an excellent swimmer, in fresh as well as saline waters. It can remain submerged in the water for up to half an hour. It can move with good speed relative to its size on land. It also climbs trees when the situation demands.

This is one of the larger lizard in the world and can grow to over 2 metres long. Shy by nature, it does not appear to be shy in the reserve. Most of the times it will back off when approached too near. However, visitors should leave the monitor lizard alone and not confront it, as larger ones can be dangerous and their bites can cause serious injuries.

It is a carnivore as well as a scavenger. Most of all, it is an opportunistic predator. It will eat almost everything that it can swallow. Its diet includes small mammals, snakes, lizards, young crocodiles, tortoises, birds and their eggs, fish, crabs and molluscs. However, it prefers carrion.

The lizard hunts by pursuing, rather than stalking or ambushing prey. And it regularly raids bird’s nests.

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It has been brought to our attention that its presence in such numbers at the reserve can be detrimental to nesting waterbirds.

The Little Grebe (Tachybaptus ruficollis) (left top) has never been sighted in the reserve. Can its absence be due to the presence of the lizards? The Lesser Whistling-duck (Dendrocygna javanica) used to breed in the area but no more. However, its absence, according to Wang Luan Keng, can be due to the presence of the snakehead (Channa sp.). Some years ago she saw a duckling being swallowed by the fish in a freshwater pond. The Common Moorhen (Gallinula chloropus) (left bottom) was sighted recently by KC Tsang but whether it is nesting in the reserve is another matter.

A pertinent question is, should the population be culled to a manageable level?

Other postings on Sungei Buloh Wetland Reserve: 1, 2, 3, 4, and 5.

Input by KC Tsang and YC, images by KC (montage: top left, bottom right; Common Moorhen), Chan Yoke Meng (Little Grebe) and YC (the rest).

References:
1. http://www.cyclura.com/modules.php?op=modload&name=News&file=article&sid=104
2.http://animaldiversity.ummz.umich.edu/site/accounts/information/
Varanus_salvator.html

Go, going, gone - My habitat

The founding of Penang Island in the late 18th Century by Sir Francis Light marked the beginning of 171 years of British rule in Malaya.

Province Wellesley on the mainland, named after Lord Wellesley, has always been made to feel and treated somewhat like a step-sister to the island state.

Geographically, it is something like Kowloon and Hong Kong Island. Except that in Province Wellesley, there aren’t any nine hills to boast of any good Feng Shui - Chinese art of divine intervention to stimulate an economic boom initiated by a race nicknamed, ‘the Yellow Peril’ by British colonists.

Nor were there any Californian gold deposits that saw Chinese junks sailed to port to name the province, ‘San Francisco of the East’ also known as Kum Sun or Gold Hill in the Cantonese dialect.

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Neither has Province Wellesley the amour and romantic provincial ambience of Provence in Northern Italy. There, sows are bred to sniff out musky truffles in Mediterranean woodlands. Valued like gold, truffles are shredded paper-thin and sparingly sprinkled over homemade, delicious pastas and spaghettis for the ‘oomph’ and much enjoyed by Italian families on special occasions.

The opposite holds true for Province Wellesley. While it held such a romantic, countryside name, it was renamed, Seberang Perai after the 1970’s.

My government then was in a passionate mood to erase all things colonial and opted for a local flavour. Pathetically, it sounds bad like a mouthful of verbal diarrhoea or a victim down with salmonella poisoning in latrine agony. Anyway, it is a phrase of a place I am not too proud to coo too sweetly.

The original topographic area of the province was mainly low lying, agricultural and forested land, with a couple of low, inland hills with patches scrub and wetlands. Naturally, it was left last to be developed in the tropical heat of a mosquito infested region.

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Fortunately, remoteness and late development gave longer tenure to bird habitats. It also allowed me a window period to checklist bird areas and put on historical record - prior to mid-2007, images of migratory and water birds seen at Bandar Perda wetlands area, Bukit Mertajam (above: top, migratory egrets; bottom, Chinese Pond Heron; right: near right Purple Heron; far right, Little Egret).

There were uncommon sightings of Greater Painted-snipes (Rostratula benghalensis), Red-necked Phalaropes (Phalaropus lobatus), Oriental Practincoles (Glareola maldivarum) and Brown-winged Kingfisher (Halcyon amauroptera), a family of Barred Buttonquails (Turnix suscitator) and Japanese Sparrowhawks (Accipiter gularis) to add to various species of bee-eaters, bitterns, kingfishers, munias, herons, wagtails, raptors and a resident Barn Owl (Tyto alba), bringing a total of more than a hundred species of birds at the peak of migratory season.

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Crepuscular birds - active feeding birds at dawn and dust had to be the signature species of Bandar Perda. Bird images shown here are the result of many predawn, solo visits and setting up of mobile mini hides at various birding sites (left: top left, Watercock; top right, Ruddy-breasted Crake; bottom left, Baillon’s Crake; bottom right, pair of Slaty-breasted Rail).

There were numerous occasions of a peaceful sit down of a take-away breakfast and hot tea-flask to observe Slaty-breasted Rails (Gallirallus striatus) hunt for their breakfast. They threw their heads back and stabbed their long beaks into damp paddy fields in search of embedded crustaceans. With hammer action, hardened shells of crustaceans, gripped by their bills, were smashed open against hardened rock surfaces (below top, Slaty-breasted Rail).

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Crepuscular birds were observed to roost in one field and breakfast stroll to the other. It provided a small window and précised time of opportunity to observe them as they crossed bunds or tracks in between fields (right bottom).

Being extremely skittish, these birds skirted the edge of paddy fields during feeding times and were rarely seen in mid-fields. As such, any slightest disturbance or predatory threat would give them the opportunity to run for cover.

In extreme cases, Watercocks (Gallicrex cinerea) were able to sense my presence a paddy field length or football field away. They posed to be most challenging of all water birds in digiscopy. The plumages of juveniles, females and non-breeding males were so well camouflaged in fallowed fields. My presence spooked them to flight before I realised they were there!

How did they know?

The sound of ploughing tractors roared in neighbouring paddy fields, churning out clumps of mud-encrusted larvae and worms to awaiting Eurasian Tree Sparrows (Passer montanus), House Crows (Corvus splendens), Common Mynas (Acridotheres tristis) and various species of egrets for fresh pickings.

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Occasionally, water birds such as this protected species of juvenile Slaty-breasted Rail (Gallirallus striatus) became destined for the cooking pot (left).

In spite of having to trudge in muddy terrain and having my boots sucked into mud and looking lost without owner’s foot, my passion for birds did not deter my fascination of observing feeding habits and behaviour of these water birds.

But… it is not me to be sitting and getting baked under the tropical sun for hours for birds to show up.

The stench of rubbish dumpsites and nuisance of mosquitoes swamping around and thirsting for new blood were no deterrent. I made peace pacts with hungry mosquitoes by the use of natural repellents and adorned the ghotra - a male Arabian headscarf which doubled up as a sunshade and dyed forest green.

However, any die-hard, large mosquitoes ‘dressed’ in black and white stripes attempting kamikaze stunts are something else to be reckoned with. They are potential carriers of Haemorrhagic Fever or Dengue Fever.

One has a choice. Smack those to death, take confession later or…. do a runner!

The only regret I have, had I been a birder much earlier to recee the birding site well, I could have chalked up a few more species of birds on my checklist. Unfortunately, my knowledge of birds then was inadequate to conclude a positive identification.

However, all is not lost. Just about in time, together with my visual partner, DG Scope, we take pleasure to share and air the final curtain show of the water bird series of Bandar Perda wetlands to readers of this blog (below: top left, Cinnamon Bittern; top right, White-browed Crake; bottom left, Purple Swamphen; bottom right, White-breasted Waterhen).

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Alas! Development arrived.

With it, came cranes, bulldozers, trucks, and machineries for road works etc. changing the landscape, replacing agricultural lands with state of the art showpieces and grandiose buildings, some with eccentric architectural styles of mis-matched European designs with a concoction of Greco-Roman facades (below).

Development of a young nation like Malaysia, catering to the ever increasing demand in population growth, commerce and industry and prosperity takes priority above anything else.

It came with a heavy price tag.

One of the very expensive, destructive and irreversible price to pay is permanent and environmental habitat loss of wild animals, avian and flora life. Uncontrolled deforestation, human ignorance and greed, lackadaisical attitude, miscalculation, lack of prudence and foresight are other contributing factors.

Does it have to be done this way only?

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A young nation in the stages of development is like a young child learning to walk tall, have a few falls and bleed a little. What is to be expected of a toddler with a pacifier learning to discover him/herself?

What did a developing nation know about good governance, harmonious partnerships in sustainable development and stringent, environmental conservation practices in their early days?

The sad thing when dealing with bird-habitat environment is, consideration to conserve is often left last in terms of economic priority. It is preferred and more convenient to brush such issues under the carpet as there are no long term revenues in sight for the short sighted.

If current developed nations were given another chance to rebuild from scratch, would they plan the same as they did before? Instead of ending up breathing in concrete jungles, could they still be seen enjoying wild life nature by circumventing development projects around vital, conservative life lines?

Currently, bird watchers living in concrete jungles and yearning to view exotic species have to pay top dollars to breathe clean air in green lung areas. They have to leave home thousands of miles away to become tourists and fly in iron birds to walk in tropical rain forests reserves.

Isn’t it uncanny that developing nations are making haste to chop down their trees at super speed to create an artificial environment; copying developed nations and catering to a greedy, misconstrued concept and ugly word call, ‘ECOTOURISM’?

Or, the madness of isolated cases where humans have become so pampered in calling government agencies to summon and axe a tree just because fallen leaves were added chore for a housemaid?

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Let’s listen to the finale chorus of three House Crows (Corvus splendens) named, GO, GOING GONE crooning to LONGFELLOW, the Purple Heron (Ardea purpurea) (top left))

GO, GOING, GONE seen perched on a bare tree,
Say GO and GONE, ‘Where have all the trees gone?’
GOING answered to GO and GONE perched on a bare tree,
‘They have all gone, to build concrete trees 200 feet long.’
So too, GO, GOING, GONE will gonna be going gone.

A last peep… as the final curtain descends on Bandar Perda wetlands (above right: top and bottom).

AVIAN WRITER DAISY O’NEILL, PENANG, MALAYSIA
(All bird images shown were taken by digiscopy techniques. No flash photography used. The use of electronic devices to entice birds into the open- not practiced).

Sungei Buloh Wetland Reserve: More on crocs

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The earlier post on the crocodile sighting at the Sungei Buloh Wetland Reserve (above) has attracted another comment from R. Subaraj, a nature consultant and bird specialist:

“Actually, from what I hear (and this needs confirmation from NParks), the croc in question just got too comfortable in its surroundings and started taking up residence in the visitor centre ponds. This is an active public zone, with lots of school kids and families at certain times and as such, the level of danger increased. As a result, the difficult decision was made to remove the crocodile altogether. At the end of the day, when public safety was compromised to such a point, NParks had to act to maintain the balance between nature conservation and public safety, I guess.

“The crocodile farm staff, who have experience in crocodile capture, were called in and the croc was caught and taken to the farm. The croc farm people were only too happy to agree as a wild caught male is difficult to come by and is ideal for breeding purposes.

“Why was the zoo not called upon? I do not know except that they may not have wanted the croc as they have enough. They often turn down many animals as they do not have the space or take them and re-release them into the central reserves (pangolins, pythons, etc.).

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“Why was the croc not removed to another part of the wetlands reserve? Well, considering the relative small size of the reserve, it would probably have found it’s way back or continued to be a problem where it was as it had become too ‘tame’.

“There are several problems with the way the public and nature circles view conservation in Singapore. We cannot compare our reserves or circumstances with other countries, where their protected areas are substantially larger or their populations not so crowded into small spaces. Managing reserves here and conserving our natural treasures have to be done so in a somewhat unique fashion as the public impact is far greater for the reasons above. I do not envy NParks responsibilities and the pressures that they face. They could use all the support and advise that they can get but it should be done without undue criticism and fault-finding…..as has been the case in the press often.

“I do not speak for NParks and it may still be worthwhile seeking their views. These are merely my views based on what I have heard and seen.”

Image of reserve by YC and that of the croc by KC Tsang (who had another close encounter on 25th July 2007).

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