Saturday 21 February 2009

Birding with Keith and Julie Ellis

Sri Lanka Frogmouth male
I led an 18-day 'birds, wildlife and culture tour' with Keith and Julie Ellis from Kent, UK from 23 Jan – 9 February. Keith was a serious birder with over 3,000 world birds in his life list. He knew most of the species that he wanted to see by their scientific names and was a sharp birder. Julie had broader interests, which included culture. She was supportive and tolerant—two traits that I admire in non-birding spouses accompanying serious birders! A cultural extension added to the tour to please her took us to several Unesco world heritage sites that included Anuradhapura—the first capital of Sri Lanka from 4th century B.C to early 11th century AD, Polonnaruwa—the medieval capital from 11-13th century A.D, Sigiriya—popularly, a pleasure capital of a single king named Kashyapa in the 5th century A.D, and Kandy—the last Sinhalese capital from 16th to 19th century A.D, which is home to the Temple of The Sacred Tooth Relic, where a Sacred Tooth of the Buddha is encased in jeweled caskets that sit on a throne. In Anuradhapura, we also visited Mihintale—the cradle of Sinhalese Buddhist civilization and birded in the world’s first declared wildlife sanctuary, announced as early as in the 3rd century B.C.!

The 'World Heritage' Sigiriya Rock Fortress
We were quite lucky with the weather, and experienced nice dry conditions throughout the tour, which was perfect for birding. In total, we bagged 253 species of birds including all thirty-three endemic birds currently recognized. Nineteen of these endemics were bagged during our first two days at Kithulgala—in the "power play" stage of the tour. And this reduced the ‘asking rate’ during the rest of the tour considerably!

Some of the high-profile endemic targets bagged at Kithulgala included Serendib Scops Owl, Sri Lanka Spurfowl, Crimson-backed Flameback, Red-faced Malkoha, and Sri Lanka Blue Magpie.
The latter two species are usually considered as Sinharaja specials, but we made good ground by bagging them in advance to free up time to look for bonus birds. Our last endemic to be seen on the trip, Sri Lanka Bush Warbler was the one that gave us the hardest time. As it was proving elusive at my regular sites at Nuwara Eliya, a pre-dawn visit was undertaken to the cloud forests of Horton Plains National Park just to see it. The temperature at at the site we settled to look for this LBJ at the Horton Plains was just about 3 degrees centigrades! Not my cuppa tea! It was so cold that there was ground frost. Jesus Christ!

After 45 minutes of searching, I managed to spot one Sri Lanka Bush Warbler skulking in low bamboo thicket, thus making a clean sweep of the endemics. I suspect the reason for its inactivity at elevations low-down probably may be due to the very dry weather experienced at those sites.

Painted Stork
Painted Stork
A special highlight of the tour was seeing ten out of the fifteen resident night birds—with most offering multiple orgasmic views! This figure comprised of seven owls, two nightjars and the only frogmouth species found in Sri Lanka. This night bird number beat a previous high recorded on my tours of nine—seen on a 15- day birding tour in February, 2008 with four crack team of British birders.

Touching in the specifics of the haul of night birds and other things, our first owl of the trip was Chestnut-backed Owlet (shown below), and it was spotted by Keith while it was actively foraging at daytime close to our accommodation. The same species was seen moments later in another patch close by, with its characteristic call betraying its hide-out in the dense vegetation.

Chestnut-backed Owlet
Our second species of owl for the trip, a roosting Indian Scops Owl was picked by me quite by chance moments later, when I was looking for the skulking endemic, Green-billed Coucal in a thicket. We got decent views of the hoped for coucal and as dusk approached the scops owl cooperated at a more open branch to present us full view of its profile. Indian Scops Owl was recorded again at a nest hole towards the tail end of the holiday (that's like, work, for me) at Anuradhapura during the cultural leg.

Our day 2 at Kithulgala saw us getting cracking views of the highly-sought-after endemic, Serendib Scops Owl. This rain forest owl was discovered in 2001 and is one of the 2 ‘endangered’ endemics (which I believe should go up to 3 with Sri Lanka Bush Warbler added to it!). The other endemic bestowed with this conservation status, Sri Lanka Whistling Thrush gave an untickable view on our first dusk vigil, but did not disappoint us on our second attempt when a female showed up over 10 minutes. A change of strategy adopted by me did the trick for us: Keith and I occupying two different spots, at several metres apart, covering two vital angles. Both of us got it almost at once when the bird emerged secretly.

Our fourth Owl species for the trip and second for day two came in the form of a vocal Brown Fish Owl in flight. The same species gave cracking views at Nuwara Eliya, Sigiriya and Anuradhapura, the last at daytime courtesy of a mob of smaller birds harassing it.

Our fifth resident night bird for the trip came in the form of a brooding male Sri Lanka Frogmouth (shown below and again, at the very top) at Sinharaja on day three. Rather sadly, we learnt the on the following day from our local guide, Ranjaka, that this nest had been ‘predated’ under mysterious circumstances. A Human involvement was suspected, which if true, was very very sad.

Sri Lanka Frogmouth - a brooding male
The day three also brought us the ultra-elusive Brown Wood Owl, which was our fifth owl and sixth night bird for the trip. We manage to see the same species on the following day too courtesy a mob of short-tempered Sri Lanka Crested Drongos. They dive-bombed it with no mercy at dusk pin-pointing us of the exact location!

Several Indian Jungle Nightjars seen at Udawalawe on day six proved to be our seventh night bird for the trip. This species offered very good views at close range at Yala too. Our eighth night bird and sixth Owl for the trip seen at Sigiriya saw us cleaning up all three Scops Owls of Sri Lanka, when Keith expertly zeroed in on an Oriental Scops Owl on day thirteen. It was calling teasingly close for over fifteen minutes. Its location remained hidden in the dense foliage for most angles available. When we found it, we had to make do with unsatisfactory back views of it due to the location of its perch.

The following morning saw us making a return visit to this site for it. After a bit of hardwork, I spotted a pair of this cute little Owls at dawn to give absolutely stonking views within three metres. Sadly, we had no camera with either of us to record this moment of magic. (Isn't that typical!).

Crested Hawk Eagle Crested Hawk Eagle
Jerdon’s Nightjar spotted by Keith on a snag high up became our ninth night bird of the trip. That was again seen on day thirteen. A prolonged sighting of the same species in a low perch bettered this sighting three days later at Anuradhapura. Our last night bird for the trip was Common Barn Owl, a pair of which was recorded in a stake-out inside shrine in Polonnaruwa.

Concerted attempts at seeing Spot-bellied Eagle Owl, Brown Hawk Owl, Jungle Owlet and Sri Lanka Bay Owl failed on this tour. However, we came agonizingly close to seeing Sri Lanka Bay Owl, twice, but it just did not show up being vocal but staying uncooperatively hidden in dense foliage despite our best efforts to obtain an angle of view. This ultra secretive owl caused a mega twitch in Sri Lanka when it turned up in a daytime roost at Sinharaja in 2007. It is in public domain that at least one local bird watcher took a tuktuk tour all the way from Colombo to see it.

Great Thick-knee
Great Thick-knee on its knees
Our other birds of note recorded during the trip included Grey-headed Lapwing (vagrant & lifer for me seen at Yala thanks to US of Ceylon Bird Club who conveyed the news), Western Reef Egret (white morph one picked skilfully by Keith at Bundala, shown below), Legge’s Hawk Eagle (formely Mountain HE, great overhead views at Sinharaja), Chestnut-winged Crested Cuckoo (a lone individual outside a flock at Sinharaja), Fork-tailed Drongo Cuckoo (spotted expertly by Julie at Kithulgala), Black-backed Dwarf Kingfisher (seen & photographed at point black range at Kithulgala), Indian Reed Warbler (in song at Bundala), Slaty-breasted Rail (Scarce resident with possible migrant populations supplementing resident populations during migratory season, seen at Tissamaharama), White-naped Woodpecker (punctual!), Kashmir Flycatcher (at least 4 sightings with the first being of an adult male), Pied Thrush (great views at Nuwara Eliya) Common Ringed Plover (a scarce migrant, not too exciting to Keith), Dollarbird (seen thanks to G. de Silva Wijeyeratne at Kithulgala) and Eurasian Collard Dove (a scarce resident in Sri Lanka seen at Annaiwilundawa RAMSAR wetland, not too exciting to Keith). A Slaty-legged Crake at Sinharaja, seen only by yours truly, was the only bird species that eluded Keith.

Western Reef Egret - white morph
We had exceptional views of the ultra-elusive Sri Lanka Spurfowls when a female followed by a male were seen over five minutes, walking in the dimly-lit forest floor, totally unaware that we were observing them from a ridge higher up! Such heart-melting sightings of this game bird are rare, and this was one of the best views that I have had of it for quite a long time guiding an overseas birder. Before that we had brief view of it at Kithulgala. It was a case of BVD.

Moving on to non-birding matters, the Leopard shown below (same individual as in the previous post) was clearly our top non-birding highlight. We were the only jeep at the site when we found it. It was first sighted at 5.30 p.m., while resting in a shady spot near a water hole named rawung-wala (meaning circular water-hole) at Meda-para at the Yala National Park—the premier site for Leopards in Sri Lanka. The cat was about 25 m away when we found it first. Soon after we killed the engine of our jeep to observe it, the cat stood up and walked towards the track in front of us. It then continued to walk along it for a while like this, soon going out of view in the bend ahead.

Leopard at Meda-para, Yala National Park
We then approached it to find it again, this time within 5 meters or so from it, enabling us to photograph it at close range. Finally, after giving a good long glance at our jeep, it retreated into the jungle and disappeared out of radar.
Leopard at Meda-para, Yala National Park
More non-birding specials, we saw a pair of Barking Deers (Indian Muntjak) at Welimada. My previous sightings of this deer species has always been at the massive Wilpattu National Park. We exchanged glances with a pair of these before they retreated to the woodier interiors.

Saturday 31 January 2009

On tour

I had this Leopard at the Yala National Park yesterday. We had it for a good 5 minutes before it disappeared into the jungle at Meda-para.

Leopard at Yala National Park

Monday 19 January 2009

The pond

Dawm Dropwing male
I have built a backyard pond to attract dragonflies. Well, my ulterior motive is to photograph those winged beauties that come in search of food and love. This pond is basically a boring rectangular tank like a large communal well. Its dimensions roughly are 17 x 7.5ft with the depth varying from 9 inches to 4ft. It is a concrete structure, and I used over 1000kg of cement for it. And the whole project costed little over US$ 400.

I have added roughly 6 inches of soil to the bottom to provide the habitat necessary for most dragonfly larvae to thrive. In certain sections, I have added pebbles to the bottom for further enrich suitable habitats for nymphs. I have added some aquatic plants in keeping with the spirit of a dragonfly pond. I have erected sticks at various spots, in and out of the pond, for dragonflies to perch. Between you and me, most of these have a strategic importance for my photography!

The pictures above and below are of a male Dawn Dropwing Trithemis aurora that visited my pond last Saturday. It was shot at midday while obelisking.

Dawn Dropwing maleBy the way, did you notice a tiny parasite on the veins of the left hindwing of the above dragon? Here's a closer look. What's your guess, a midge? a wasp?

a parasite I have jammed several images into the 'contact-sheet' below showing the process and progress. Click on it for larger view.
Pond
As you can see it is not the most aesthetically pleasing pond in the world! What matters for me is its functionality to suit my style of dragonfly photography. The elevated rim of the pond was made to prevent siltation because of the high rainfall in the 'wet zone' of Sri Lanka that I live in, and to support myself while shooting dragons. Once this outer wall has darkened with time, I hope it will draw this amazingly camouflaged Indian Rockdwellers Bradinopyga geminata that are found 70 metres as a dragonfly flies.

Indian Rockdweller I have introduced some vegetation around the pond for dragonflies as well as butterflies. In most sections around the pond, I have let the nature take its course.

Here's a Red Water Lilly Nymphaea pubescens in bloom.

Before I built this pond, my yard had a tally of 22 species of dragonflies and damselflies. That was with a small pond teeming with fish, built, and managed by my farther. After I did mine, our dragon tally has gone up to 24. There are 4 species that are recorded in an abandoned quarry with natural rock pools just 70 m as a crow dragonfly flies from my yard, which are not represented in my yard’s dragon list yet. This figure used to be 5, but after I declared the pond open, this male Blue Pursuer Potamarcha congener became the first to defect to my side from this neighbouring patch, where the pools are seasonal.

Blue Pursuer - male I hope the word gets around and I will see those other four turning up in my yard soon! Anyway, looking at my local area numbers, which are higher than my yard and neighbouring rock pool tallies combined, I am confident that my yard list will imporve in the fullness of time.

Here's a close crop of the same. Note, another parasite on the wing.
Blue Pursuer Here's a better view of it. Any idea what it could be?

This Pink Skimmer Orthetrum pruinosum neglectum male was one of the first dragonflies to lay claim to the pond.

I have added a few smaller resident fresh water fish to keep mosquitoes at bay, which is an important consideration here in the tropics. These include four Cyprinids: Horadandiya Horadandiya atukorali – a reputed mosquito larvivore, Slender Rasbora Rasbora daniconius, Scarlet Banded Barb Puntius amphibius and Malabar Danio Devario malabaricus. In their company are shoals of Dwarf Panchax Aplocheilus parvus (Aplocheilidae) -another good mosquito larvivore and Common Spiny Loach Lepidocephalichthys thermalis (Cobitidae). I doubt any of these fish will pose a serious threat to dragonfly larvae. On the positive side, the larvae of these fish will also serve as food for dragonfly larvae to set the food chain in motion. I think the pond will have plenty of hiding spots for the dragonfly larvae to protect themselves from fish. Those nyiads are known to be pretty smart operators, anyway.

After a brief absence, Elusive Adjutants Aethriamanta brevipennis brevipennis have started to show up now. Here's a female of that.

Elusive Adjutant
In addition to dragonflies, my pond is attracting a fair number of non-odonate visitors to bathe, drink and find food. Most annoying of all the non-dragonfly visitors other than mosquitoes (which aren't too much of a probelm yet) is White-bellied Drongo, which seems to be profiting from the open and well lit area to target and dive bomb at my dragonflies! One of them attempted to catch a dragonfly that I was photographing, inches away from me! Thanks to its amazing vision that focal individual got away.

Here's a mug shot of this avian culprit. Don't be fooled, he is not as innocent as he looks!

I'll take your questions.

Saturday 17 January 2009

Think Orange!


Dawn Dropwing Trithemis aurora male photographed at my dragonfly pond today. A post about this pond will be done in a few days time.

Friday 16 January 2009

Fulgoroid Friday

This planthopper was photographed during a frogging session at Sinharaja 'World Heritage' rain forest during my Christmas birding tour. It was barely 3 cm in length. For you inquiring minds, its classification is as follows.

Kingdom: Animalia, Phylum: Arthropoda, Class: Insecta, Order: Hemiptera, Suborder: Auchenorrhyncha, Infraorder: Fulgoromorpha, Superfamily: Fulgoroidea, Family: Dictyopharidae.

The Biologist Dr. Priyantha Wijesinghe whom I consulted for this had crosschecked its identification with an expert on a related family, and fowarded me his reply. It said, "...I reach the same conclusion as you: probably close to Centromeria viridistigma (or maybe it is that species) but as I am not a Dictyo specialist, I really cannot tell you more..."

?Centromeria viridistigma

Tuesday 13 January 2009

Top 10 Natural History highlights - 2008

Following are the top 10 Natual History highlights that made me tick in the year 2008. I'd like to thank Duncan Fraser at Ben Cruachan - Natural History for his invitation to do this post.

1. Elusive Adjutant Aethriamanta brevipennis brevipennis-- adult female in my home garden. Winner of Best Dragonfly Moments Macro Capture of 2008. Click here to see all the entries and the voting process and here to see the winning shot of mine announced.

Elusive Adjutant adult female in my home garden at Bomiriya, Kaduwela2. Serendib Scops Owl Otus thilohoffmanni -- Photographed on tour with Thiery Becret, Marie-Andrée Becret and Michelle Gerner from France at Sinharaja 'World Heritage' Rain forest in Aug, 2008. This bird was discovered new to science in 2001. Click here to read more details about it. It is one of the 2 "Endangered" endemics in Sri Lanka and the reason why I bought my Panasonic Lumix FZ-18, after seeing amazing results of a Panasonic Lumix used by Peter Kaestner, who shot this photograph of this rare forest owl on tour with me in September, 2007. Peter is currently placed 6th in the 'world rankings of birders with 8,197 bird species seen out of 10,000 or so species in world.

Serendib Scops Owl

3. Leopard Panthera pardus kotiya. Another one of the many highlights of the aforementioned tour in Aug, 2008. As blogged here, it amply rewarded our persistence. Leopard is the apex predaor in Sri Lanka and day time sightings are regular at Yala National Park's block 1 (141 sq.km) where there is a healthy population of around 40 individuals.

Leopard at Yala National Park

4. White Four-ring Ypthima ceylonica -- a garden delight. I was flat on the ground commando style when I shot this. This is quite a common species but photographing them is really a pain in the neck as they always quite low down.

White Four-ring

5. Elusive Adjutant Aethriamanta brevipennis brevipennis -- Duncan never told me that you cannot repeat a species. This juvenile male was shot in natural light hand-holiding the camera as I usually do. This dragonfly species is very much my 'test' dragonfly that I use to learn close up photography.

Elusive Adjutant - juv

6. Long-horned Grasshopper "Robust Zumala" Zumala robusta -- Photographed on tour with the three French photographers mentioned above. This was my top non-birding highlight of that tour. It was identified by Biologist, Dr. Priyantha Wijesinghe- - one time Entomologist in the National Museum of Sri Lanka. He wrote "...your photographs are excellent and I was very glad to see them, not having come across a live specimen of Zumala myself". I blogged about this here.

Zumala robusta

7. Black-backed Dwarf Kingfisher Ceyx erithaca -- As blogged the previous post, this was bagged during my Chirstmas Birding trip with Richard and Anne Bishop from Kenya in Dec, 2008. This was scored at Kithulgala and was the first bird we raised our binoculars to watch on this tour!

Black-backed Dwarf Kingfisher

8. Purinosed Bloodtail Lathrecista asiatica asiatica -- young female photographed in my yard. I bagged her just three days after getting my first dSLR and she put a smile in my face for that reason. And I put a smile back in her face in celebration of my first blogoversary.

Lathrecista asiatica asiatica young female

9. "Ornate Rakwana Grasshopper" Rakwana ornata.-- Another one of the top highlights seen on tour with the French photographers in Aug, 2008. Read comments on this post for details. This was shot using my old Panasonic Lumix-FZ-18 and ultra stealth mode. Dr. Wijesinghe who identified this for me was very happy to see its image too. He wrote to me "Although this species lacks wings and is flightless it has extremely good jumping powers and very acute vision (note the very large and prominent eyes), so it is very hard to approach both for capture and photography."

Rakwana ornata10. Common Hourglass Frog Polypedates cruciger -- This female was shot at night in my home garden.

Common Hourglass FrogSo, what is your pick?

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