Cannibalistic Water Monitor Lizard

The King’s Project area at Laem Pak Bia is a really good birdwatching site in Thailand. However, any visit is certain to result in sightings of large water monitor lizards in and around the water, as well as birds. Many people ask me what such large lizards eat, and I have long suspected that they eat each other, although I have observed them stalking Pond Herons unsuccessfully. On Sunday 23rd March 2008, Andreas Egelund Christensen and myself saw a large water monitor and stopped to take photographs of it, only to turn a corner and see a much larger monitor in the process of eating one of its own kind. The large monitor was just over 2 metres long, from nose to tail, and the dead monitor was over 1 metre long. We didn’t see the large monitor make its kill, but the dead creature showed no sign of having been run over, instead it had a large gash in its neck which seemed to have been made by the jaws of the cannibal.

Below are the photos, click for larger versions.

As we watched, the predatory monitor was very reluctant to leave its catch, but eventually slipped into the water. However, when we returned to the same spot 10 minutes later it had returned to resume its meal.

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Thailand Birding: A Quest for Broadbills

On 19th March I joined Alex Vargas on a search for broadbills at Kaeng Krachan as he was after some photographs of those species for his collection:  My Birds, Thailand by Alex Vargas.

Before heading into Kaeng Krachan, however, we spent an afternoon at some paddie fields near Petchaburi before moving on to the King’s Project area at Laem Pak Bia. The paddies are always good for Green Bee-eater and Alex took some nice photos of these. We birded from the car mostly and saw a number of good birds including Pheasant-tailed Jacana, Bronze-winged Jacana, Long-tailed Shrike and a couple of raptors; Peregrine Falcon, Black-eared Kite (formerly lineatus Black Kite, split in Raptors of the World by Ferguson-Lees & Christie), Brahminy Kite and Eastern Marsh Harrier.

Moving on to the King’s Project we arrived for about 5.15 pm which is when a lot of activity is occurring with birds coming in to roost and a last flurry of activity in reed beds. In one muddy pool we found a flock of 40-50 Ruff – this spot is usually good for some Ruff but this was quite a high count. Sitting, looking along some reed beds we got great views of Slaty-breasted Rail, Ruddy-breasted Crake and White-breasted Waterhen; at one point having all three in the same field of view. We also watched Common and Pintail Snipe, dreaming about Swinhoe’s Snipe which I have been told is only reliably seperated from Pintail by its tail feathers; something which is very dificult to see properly unless it is in the hand.

As time stretched on we saw large numbers of Black Drongo coming in to roost and these were accompanied by at least 200 Blue-tailed Bee-eaters and several groups of White-shouldered Starling, numbering in between 200 and 250 birds. Other species coming in to the roost included hundreds of Common and White-vented Mynas and Asian Pied Starlings as well as 60-70 Red Collared Doves. We got a brief view of an Indian Nightjar as it settled on the road whilst we watched Black-crowned Night Herons and Fruit Bats emerge from the mangroves.

Finally we searched for an Indian Nightjar for Alex to photograph but struggled to find one, instead getting fine views of a Barn Owl. Eventually (after we had been asked to leave) we found an Indian Nightjar on the grass but just as Alex was about to photograph it, the bird flew away not to be seen again – that’s birdwatching for you!

After a nice dinner at a beachside restaurant we moved on to our accommodation at Kaeng Krachan.

20th March

Waking up early we were birding in Kaeng Krachan by 6.45am and at our first stop we found some very nice birds. Violet Cuckoo and Drongo Cuckoo were nice to see and good numbers of Thick-billed Pigeons, Black-naped Orioles and other common forest birds were feeding in a fruiting tree along with a few Oriental Pied Hornbills.

Whilst watching these and both Greater and Common Flameback we heard the manic call of a Banded Broadbill. Very fortunately for us a pair of these birds very quickly moved in and we had great views, although they never sat in a location with light good enough for the best photographs. Before moving on to the next stop we spotted a Black Baza circling in the distance and a Crested Goshawk sitting in a tree.

The next interesting bird was spotted as we drove along – a Forest Wagtail – always a nice bird and 6 or 7 more over the next 2 days indicated migratory movements. We also had a roadside Orange-breasted Trogon and Black-thighed Falconet and a number of Crested Serpent Eagles before we reached Ban Krang campsite.

At the campsite we wandered around a little and sat in the shade, waiing for birds and eating our lunch. This proved a good strategy with more Forest Wagtails, a Taiga Flycatcher with an orange throat, a pair of White-rumped Shamas, Ochraceous Bulbul, Hainan Blue Flycatcher, Blue-bearded Bee-eater and another pair of Banded Broadbills all putting in an appearance.

After lunch things were slower, as they often are when birding in the forest in Thailand, but we managed good sightings of Silver-breasted Broadbill, a wonderful species that the guidebook by Craig Robson (A Field Guide to the Birds of Thailand) does not do justice to. We struggled to see very much else with a brief view of Greater Yellownape and Emerald Dove being the most interesting species.

Slowly we made our way out of the park but stopping on the road out is always worthwhile and we saw both Hill and Golden-crested Myna, Greater Racket-tailed Drongo, Green-eared and Blue-eared Barbets and Thick-billed Pigeon to liven things up.

Back at our accommodation we heard Large-tailed Nightjar but failed to see it as it was in dense forest calling but not flying.

21st March

Another early start and we drove quickly up to Ban Krang as we wanted to be in the more moist forest early on. Our day started well with more Silver-breasted Broadbills showing themselves and plenty of the more common forest birds such as Blue-winged Leafbird, Great Iora and Rufous-fronted Babbler which is a really cute and curious character.

Close to the first stream we hit a bird wave with Grey-capped and Laced Woodpeckers, Greater Racket-tailed Drongo, Chestnut-breasted Malkoha and Asian Fairy Bluebird. For us, though, the best bird was a beautiful male Blue-and-white Flycatcher in the lower canopy. This is not a common bird at all and it was only the third or fourth time I have seen it. Another nice species was a Black-bellied Malkoha.

Things got quiet quite early on and it was noticeably hotter than it was a month ago, however, walking along we steadily picked up good birds, with a nice Moustached hawk Cuckoo that we got in the telescope, a Chinese Blue Flycatcher and a very obliging Indian Cuckoo which sat right above our heads catching insects that looked like flying ants. Another Drongo Cuckoo out in the open was also nice and a pair of Great Hornbills was heard by their wingbeats before they passed across the road – always a good bird to see!

The Brown Hornbills were not to be seen, probably we were too late for them, but a family group of bery noisy Dusky Broadbills was our third broadbill species of the trip and Alex got some good photographs of them – a fairly successful quest for this group of birds which was confirmed by another group of Silver-breasted Broadbills which gave the opportunity for the best photos yet.

With this success we went back to the campsite for some lunch and did some birding here with Black-headed Bulbul, Violet Cuckoo, Golden-fronted Leafbird, Greater Yellownape, Hainan Blue Flycatcher and Black-winged Cuckooshrike all welcomed. As we were pretty tired and feeling flush with success we decided to take a slow drive back to Bangkok. There was plenty of time to stop in the forest though and another Indian Cuckoo was a great sight but probably the strangest sighting were 2 Grey-headed Lapwings on the road in the forest! This species is normally found on wetlands unlike Red-wattled Lapwing which likes dry open areas and is commonly found at Kaeng Krachan. We watched these for some time until they began peering strangely into the sky. Up we looked and saw 3 soaring Oriental Honey-buzzards and a Crested Serpent Eagle; no wonder the lapwings seemed nervous.


Lost Grey-headed Lapwings
(Photo by Alex Vargas)

We stopped just a little further on to see some Stump-tailed Macaques and Black-naped Monarch taking a drink at a roadside pool when the lapwings flew past, with 2 more of their kind – 4 Grey-headed Lapwings in a forest!!!! The previous night there had been a thunderstorm and this species is migratory so I guess the storm had put them down in a strange spot.

This time we really did head out, stopping briefly at the HQ where we saw a few common birds such as Ashy Woodswallow, Little Egret, Cattle Egret, Kentish Plover, Little Ringed Plover, Black-collared Starling  and Javan Pond Heron before taking a trouble-free drive back to Bangkok.

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Trade in Endangered Species at Chatuchak Market

On Sunday 16th March 2008, my wife and I went to Chatuchak Market in Bangkok to do some shopping. I took the opportunity to take a look at the animal section and was appalled to see large numbers of birds, mammals and reptiles being sold illegally. Squirrels were particularly numerous as were reptiles, but it was particularly disturbing to see a significant number of birds that had obviously been trapped in the wild in Thailand being offered for sale.

I managed to secretly take a few photos of the situation there, although the quality is rather poor. For those interested, the list of bird species and numbers seen are listed here: Illegal Wildlife Trade Flourishing at Chatuchak Market.

       

Unfortunately, wildlife in Thailand comes under a lot of pressure from such activities and they are so widespread that only a few cases are dealt with. The Wildlife Friends of Thailand do a good job of rescuing a number of abused animals; take a look at their website: Wildlife Friends of Thailand.

It seems that all too often I am adding information to pages on thaibirding.com that deal with issues such as wildlife abuse, bird trapping and suchlike: Bird Persecution, Large Numbers of Dead Birds at Muang Boran Fishponds, Roads Through Wilderness Areas Inevitably Lead to Problems, Abuse of Wildlife for Tourists, Mass Trapping of Birds at Chiang Saen.

However, yesterday there was some good news reported in The Daily Xpress. Over 200 rare animals were seized by the police who raided Chatuchak Market on Saturday 21st March, arresting a number of traders in the process. The rescued animals included Slow Lorises, Madagascar Tortoises and many birds.  Although this is just the tip of the iceberg in terms of the illegal trade in wildlife in Thailand, it is at least a small victory for the police and conservationists.

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Butterflies at Kaeng Krachan

Kaeng Krachan national park is a great place for birdwatching with regular sightings of many species of woodpeckers, broadbills and other exciting birds. It also happens to be a superb place for seeing butterflies with huge clouds of them coming to wet patches to take salt in the middle of the day. If one stands close to these clouds of butterflies eventually they will begin to settle on your arm, attracted by the sweat.

For photographers there are some good opportunites for great pictures and even with just a compact camera and a little patience it is possible to get some nice photos. I took these butterfly pictures close to Ban Krang campsite on 21st March 2008 whilst on a birding trip with Alex Vargas.

         

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Thailand Birding: Searching for “White-faced Plover”

On 13th March Mark Tunmore and Neil Armitage joined me for a trip to Laem Pak Bia/Pak Thale. Their priority species were Malaysian Plover, “White-faced Plover” and Black-faced Spoonbill all of which had been reported as still being present just a week previously.

The drive from the centre of Bangkok to Laem Pak Bia took the usual 2 hours and we made our first stop at the Black-faced Spoonbill site. It is worth noting that at this time in the morning, the spoonbills were not present but when we returned later in the day (about 4.30-5pm) they were both present and feeding amongst large numbers of Grey Herons and 17 Painted Storks. The morning stop at the spoonbill site did turn up some interesting birds though with Oriental Skylark, Dusky Warbler, Oriental Reed Warbler and Indochinese Bush Warbler. Amongst the Red-necked Stints was a Little Stint coming into breeding plumage.

The large flock of Great Knot were obliging at their usual spot but the Nordmann’s Greenshank, which are usually close-by, did not show up.

However, it was the trip to the sand spit which was most anticipated and we arrived just as the tide began to go out. Actually, a short distance from the spit is a sand bar and that is where our boatman (Khun Meta) skillfully landed us a short distance from a large group of terns without scaring them away. Amongst the many Common and Little Terns were 1 Caspian Tern, 5 Lesser Crested Terns and 17 Great Crested Terns. Moving on to the spit itself we quickly found Sanderling, Kentish Plover and the awaited Malaysian Plover. These birds are easily picked out from Kentish Plover by their longer legs, slimmer appearance and slightly different plumage. Many of the Malysian Plovers here also carry leg rings, making them even easier to seperate even in poor light.

Also on the beach was a Greater Sand Plover in breeding plumage – a nice sight! The “White-faced Plover” proved harder to see today than on previous trips and we spent much time scanning across the emerging mud flats and beaches looking for it. In this way we saw a Chinese Egret, a dark morph Pacific Reef Egret and a breeding plumage Javan Pond Heron as well as large numbers of Lesser Sand Plover and Kentish Plover. Occasionally we would see a pale-looking Kentish Plover, causing some excitiment, but the “White-faced Plover” is a really distinctive bird and easily picked out.

Just as we were beginning to give up and wilt from the heat a cockle-picker came along on a motorbike and flushed a group of birds from behind some rocks, onto the sand. Luckily for us this included our “White-faced Plover” which proceeded to run around and aggressively chase other birds away. Mark commented on the distinctive behaviour of this bird too as it seems to make long, fast runs across the sand where Malaysian and Kentish Plovers tend to make shorter runs.

Happy with our lot here we returned to the boat pier. We checked out the Spoon-billed Sandpiper site too but there was very little to see there – a later meeting with Uthai Treesucorn revealed that the Spoon-billed Sandpipers hadn’t been seen for 2 days. We did find 3 Pied Avocets though, close to the Black-faced Spoonbill site, and many other of the more common shorebirds.

We finished the day in the King’s Project area with drongos flying in to roost and many waders in the filter beds, including both Common and Pintail Snipe as well as a bird which was a possible Swinhoe’s Snipe – it had many features of Pintail Snipe (dark underwings, although slightly contrasting to the flight feathers, no white trailing edge to the wings, short call) but it had the long bill of a Common Snipe. If anyone has any information on the identification of Swinhoe’s Snipe I would really appreciate knowing. Other birds at the King’s Project were Black-crowned Night Heron, Ruddy-breasted Crake and Ruff.

We were very pleased with the sighting of “White-faced Plover” because it was high on the list of desired birds and because we had to work quite hard to see it. It will be interesting to know how much longer this bird stays for and when it departs for its breeding grounds -wherever that may be.

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Thailand Birding: Birds in a Bangkok housing estate

Bangkok is a crowded, busy and noisy city but it is amazing how many birds still manage to eke out an existence within the city boundaries. The housing area I have been living in for the last few weeks is quite crowded, with few areas of open land, although it is close to the edge of the city, but still I have seen a number of bird species that has surprised me, even with no vegetation other than what is in people’s window boxes and small front yards.

Today the call of some bee-eaters caught my attention and I went out the front to see 2 Blue-tailed Bee-eaters flying overhead, presumably driven along by the advancing rainstorm.

Other species I have seen here in the last few weeks are:

1. Oriental Magpie Robin
2. Plaintive Cuckoo
3. Red Collared Dove
4. Olive-backed Sunbird
5. Scarlet-backed Flowerpecker
6. Scaly-breasted Munia
7. Peaceful Dove
8. Eurasian Tree Sparrow
9. Large-billed Crow
10. Streak-eared Bulbul
11. Common Myna
12. White-vented Myna
13. Spotted Dove
14. Common Iora
15. Common Tailorbird
16. Pied Fantail

Hopefully soon I can move to a leafier area where a larger number of species can be seen from the front door!

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Thailand Birding: Muang Boran Fishponds

On Saturday morning (08/03/08) I finally got myself back to Muang Boran Fishponds in Samut Prakarn province – a place which used to be one of “local patches” in Thailand. Despite the slightly convoluted way in, I remembered how to get there and was on site by about 6.45am. It seemed little had changed here since my last visit four years ago and after a few minutes I had seen Striated Grassbird, Common Kingfisher, Whiskered Tern, Coppersmith Barbet (which somehow was a new bird for my site checklist: Muang Boran Fishponds Checklist), Purple Heron, Intermediate Egret, White-browed Crake, Pheasant-tailed Jacana, Asian Golden Weaver and much more – in fact I saw over 30 species within five minutes of arrival. I walked further in to the site hoping to get into the area which was always good for Acrocephalus warblers in the past but it was very difficult to walk past the large concentrations of waterbirds that were present. I was compelled to stop to count waterbirds at one pond, such was their number. I counted over 600 Lesser Whistling Ducks which is by far the highest number I have ever seen here – what does this mean? Is it that the habitat here has improved for this species or that in their past wintering grounds have been destroyed? I suspect that the latter is true. Suvarnapoom airport is not so far away and that used to be a large swampy area with many birds, perhaps many of them have moved to this site? Other interesting counts were 88 Pheasant-tailed Jacanas, 15 Bronze-winged Jacanas, over 50 Common Moorhen, 8 White-browed Crakes (1 with a small juvenile) and hundreds of Pond Herons and Egrets.

Interesting to note that out of the hundreds of Pond Herons, most were still in winter plumage, but a few Chinese Pond Herons were in breeding plumage and probably twice as many Javan Pond Herons were in breeding plumage. I have noticed over the last few weeks that Javan Pond Herons seem to come into breeding plumage slightly earlier than the Chinese Pond Herons – I don’t know if this is a regular thing or just wrongly-drawn conclusion from my own casual observations.

I hurried along to my favourite warbler hotspot but found only a few Black-browed Reed Warblers and lots of Oriental Reed Warblers, although lots of Plain Prinias were doing their best to convince me they were warblers. As I searched for more warblers, successfully finding large numbers of Black-browed Reed Warblers (couldn’t make any of them Manchurian Reed Warbler which also occurs here) and a single Rusty-rumped (Pallas’s Grasshopper) Warbler, I suddenly noticed that virtually every pond had strings across it with hooks hanging down. From these hooks were bird corpses; birds that had foolishly decided to steal fish from these ponds. In the past this practice was restricted to just a few ponds but now almost every part of the site is infested with birds traps of some sort. Here are a few pictures that I took.

    

Anyone who is interested can read more on this matter here: Large numbers of dead birds Muang Boran Fishponds.

On a more upbeat note, there are still large numbers of birds at this site and although Yellow and Cinnamon Bitterns seem particularly prone to ending up on a hook I saw at least 12 of the former and 6 of the latter. Another interesting bird that is commoner here than at many other locations is Yellow-bellied Prinia; I saw plenty of these little chaps, just listen for their call. It is also worth mentioning how common Striated Grassbird is here too – I have probably seen more of this species at this site than I have at all the other sites put together. Despite it being a brown job I like Striated Grassbird very much – I particularly appreciate it being very noisy and easy to see and I saw at least a dozen of them without trying. One  day I will have to go back and try to count and map the number of birds holding territories here.

Continuing on I found a nice group of 11 Cotton Pygmy Geese in the corner of one pond and continued to see good numbers of White-browed Crake – one would have to be blind to miss this species here. Another good bird here is Asian Golden Weaver and the males were already in breeding plumage and busy weaving nests to impress the females. Of two small colonies I found, the larger had a total of 11 nests under construction and the smaller had 3 nests being built. In total I counted around 20 of this colourful little character. It is worth getting to Muang Boran Fishponds now just to see this lovely little species.

Another nice addition to the day list was 4 Chestnut Munias, feeding alongside the weavers. 5 Baya Weavers were also present although I saw no males in breeding condition. At this point the sheer numbers of birds inspired me to try a photo. Here is the rather feeble result.

I decided that I am better with flowers; they don’t run away or fly away.

   

Other birds worth mentioning were 3 Ruddy-breasted Crakes, 8 Purple Herons, 38 Indian Cormorants and 69 Oriental Pratincoles. The pratincoles seem a little early and most of them were seen scattered amongst the flames of burning undergrowth!!!

As I headed out of the site I walked back a slightly different way and as usual this detour resulted in more species. Particularly satisfying were 8 White-winged Terns amongst numerous Whiskered Terns, 3 Oriental Skylarks involved in a territorial dispute and a single Grey-headed Lapwing alongside 3 Red-wattled Lapwings.

All in all a good day’s birding and a male Greater Painted Snipe flying in close to me made it a very good day as I left. In total 79 species were a decent reward for 5 hours birdwatching in Thailand. I would have stayed for a while longer but even with a decent breeze the heat and humidity were getting to me.

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