Showing posts with label Amphibians. Show all posts
Showing posts with label Amphibians. Show all posts

Thursday, 26 August 2010

Of Courting Cuckoos, Butterflies That Make Me Go Weak in the Knees & Stuff

I joined a bird watching trip of the Field Ornithology Group of Sri Lanka from 21–24 Aug., 2010.

It was led by Prof. Sarath Kotagama, whose book Kurullan Narambamu [කුරුල්ලන් නරඹමු (Let's Watch Birds)] was my first field guide in 1989, after getting hooked on birds in the same year. The good professor turned 60 during this trip; few members organised a surprise cake in celebration—which turned out to be his first b'day cake! And for that reason or another, only a single candle was lit on the cake.


Black-hooded Oriole at the Rajarata University premises where we stayed overnight.

On the birding front, we did well, seeing 110 species of birds. The most interesting bird sighting (for me) was two early Barn Swallows that I spotted on 24 Aug. They were flying over a roadside wetland birding stop between Mihintale and Ritigala. This is the earliest date for this migratory bird for me; my previous best was 25 Aug., 2007 at the Udawalawe National Park.

I also picked a Wood Sandpiper (one on 23 Aug., and several on 25 Aug.).  A Common Sandpiper spotted by "Sir" was our third migratory bird for the trip.

On popular request, I did a 10-minute night walk with several keener participants, and pulled out a Jerdon's Nightjar—a lifer for all. I wasn't comfortable in going on for longer; all participants, including I, had no "proper footwear" needed for serious night explorations. (I packed for this trip with an economy that would have put Mr. Bean to shame.)

The 7cm Pale-billed Flowerpecker—the epitome of avian downsizing in Sri Lanka. 

We had mixed weather with cloudy and sunny conditions. The rain experienced in patches did not get in the way of birding. Instead, it cooled the weather and made the unrelenting August sun—relenting.

The endemic Sri Lanka Grey Hornbill (male). This was rather abundant in the Rajarata uni. gardens.

My top behavioural observation was to do with a pair of Jacobin Cuckoos in courtship.
Spotting a perched individual of this cuckoo, we noticed it going all jittery—a display that consisted of wing-shivering accompanied by jerky head movements. In no time, it was joined by another Jacobin Cuckoo with a caterpillar in its beak. The latter then mounted on the jittery one, offering the morsel of food it held in its beak. This was followed with mating—when the female appeared to be distracted by food.

Here are the paparazzi captures.

Jacobin Cuckoos displaying courtship feeding, which led to mating.

These captures didn't come off the way I liked. The camera being at a wrong setting (with a higher ISO and lower shutter speed), and the scene being a twiggy one were the reasons for that.

Anyway, here's a better take, postcoital.

Jacobin Cuckoos after correcting camera settings.

Studying the photographs post-retuning-home, I saw through a cunning plan of the male.

That was during mating, the male had not let go of the caterpillar completely; instead, it had held on to a part of it in its beak—seemingly to keep the female waiting until it finished mating! I think the male was holding on to the caterpillar like a bargaining tool to seal the deal.

The cunning deal.

Moving on to matters non-birding and non-voyeuristic, I stumbled this cryptic Spotted Tree Frog Polypedates maculatus during a forest walk close to Kebithigollewa.

This particular individual was not all that spotted as the vernacular goes, but then, it is not unusual for it to be not spotty. This is one of the Gembas that turn up in toilets in the dry zone.

I also found a Sri Lanka Painted Frog hiding inside a tiny slit of a tree at the Rajarata University, where we stayed overnight.

This Oriental Scarlet Crocothemis servillia servillia was one of the dragonflies that cooperated. This is a female.



Our top reptilian highlight was an Agamid lizard described in 2005, Otocryptis nigristigma—the dry zone cousin of the Kangaroo Lizard Otocryptis wiegmanni found in the wet zone. It was spotted by a keen naturalist at the Rajarata University.

Butterflies dominated my non-birding highlights. Here are eleven of them—all photographed on this tour.

Family: Papilionidae.

Banded Peacock Papilio crino.
This is one of those butterflies that make me go weak in the knees.

We had this individual at Mihintale on day 2. It was nectaring on the flowers of Carissa spinarum (Heen Karamba in Sinhala), before perching within a few feet from me.



During a marathon lounging session in my garden, sometime ago, I saw a flash of peacock green luminescence. It at once registered in my head: "Banded Peacok." The fact that I was in my garden, in my laze, came to me little a bit late. And the delayed realisation that followed: "Banded Peacock in My Garden!" was truly an ethereal moment.

Bluebottle Graphium sarpedon teredon.
Uraji Karunaratne, an ardent Royal supporter, spotted this and shared it with me. This year's rugby captain of Royal, Duminda Attygalle, is her nephew, I learnt. (St. Peter's won the two matches played this year with Royal, after two amazing games of rugby: 22-20 in the first, and 29-27 in the second—the latter which was dubbed as the "Injuction Cup Finals," for reasons that I cannot go into detail here.)


Lime Butterfly Papilio demoleus demoleus.
Photographed close to Kebithigollewa.


Family: Danaidae.

Blue Tiger Tirumala limniace leopardus.
I got a decent sequence of this.



Family: Pieridae.

Blue Wanderer Pareronia ceylanica ceylanica.
Another butterfly that makes me go weak in the knees. I have had a few close encounters in the past, but when it happed, never have I had a camera. So when this male arrived at the Carissa tree that the first one was nectaring on—I was near collapse!



Family: Satyridae.

Tamil Bushbrown Mycalesis visala subdita.
Spotted at the same spot as above.


Family: Lycaenidae.

Monkey-puzzle Rahinda amor.
I photographed this on day 3, just before I stumbled the cryptic frog. This uncommon beauty is a sought-after species by butterfly enthusiasts, so I am very pleased about it.


Lime Blue Chilades lajus lajus.
I shot this near the vehicle park at Ritigala. This is a common species also found in my home garden.


Family: Pieridae.

Lesser Albatross Appias paulina galene.
Seen soon after the Bluebotte.


Small Salmon Arab Colotis amata modesta.
A common species in dry zone.


Family: Nymphalidae.

Chocolate Soldier Junonia iphita pluviatalis.
A common species also found in my garden. This was photographed at Ritigala.


Moving on to more other stuff, the best meal of the trip was an artery-clogging Sri Lankan breakfast—free!—thanks to the member and participant Asitha Samarawickrama, 17, whose Uncle, Malik Samarawickrama, had a bridal wear factory at Madawachchiya. (I thought Sir played his cards really close to his chests, stopping there on our way to Kebithigollewa on day 3.) Everybody who joined this excursion barring a fasting Muslim girl from the Rajarata University partook this tasty breakfast, which consisted of string hoppers, chicken curry, fish white curry, coconut sambol, bread, spicy dhal curry, milk rice, lunu miris; plus tea and juice to wash 'em down. Asitha's Farther, Lalin Samarawickrama (brother of Malik Samarawickrama), is the Managing Director of Amaya Resorts & Spas. So the Samarawickrama's knew their hospitality too well.

And finally, here is the cast—the heros, villains, jokers, lovers, sinners, and midnight toker talkers—that made this production possible. One actress is missing though. Any guesses who that is, FOGSL people?

Click on images to view them sharper.

Friday, 22 May 2009

Ripleys, believe it or not

Barnes' Cat Snake
had a very good time in their 4-day natural history trip with me last month. We are talking about Dave and Rose Ripley from Wales and their girls, Celyn and Ceinwen, aged 13 and 12. Before the tour, Dave wrote to me “My wife and I enjoy birdwatching, the children not so much...”. And he added “...they would certainly enjoy elephants, snakes, lizards, insects, and birds in moderation.”
We agreed to combine the best of dry and wet lowlands by visiting the Udawalawe National Park and the Sinharaja "World Heritage" rain forest, with more emphasis on the latter.
Our dry zone leg gave plenty of the hoped for Asian Elephants. With Elephants found year-round, in their 100s at times, Udawalawe was a sure bet for seeing them. Additionally we saw Wild Boar, Wild Buffalo, Spotted Deer, Hanuman Langur, Jackal and Ruddy Mongoose. Land monitor, Flap-shelled Terrapin and Mugger Crocodile were some of the reptiles seen at the first leg.
With my 'oozing coolness' , I got the gals in my side and soon witnessed them actively getting involved in spotting birds, with enthusiastic support given by their parents. This resulted in us raking in nearly 100 species of birds on our day 01. These included Malabar Pied Hornbill, Lesser Adjutant, Grey-headed Fish Eagle, Blue-faced Malkoha, Sirkeer Malkoha, Pied Cuckoo, Plum-headed Parakeet, Crested Treeswift, Orange-breasted Green Pigeon, Sri Lanka Green Pigeon, Green Bee-eater, Barred Buttonquail (many), Indian Pitta and Indian Jungle Nightjar.
We also saw a large dragonfly named Elephant Emperor Anax indicus, which was my top highlight for day 01!
Our rain forest leg called for a different approach to get the girls involved – as it entailed exploring the forest on foot. I gave my Swarovski Binocs to Celyn, which she liked a lot.
Celyn with a Swarovski EL 8.5 x 42 binoculars
And I taught young Ceinwen how to do macro-photography using a point and shoot digital camera, which kept her constantly lagging behind. Both girls were sharp-eyed and got involved actively spotting things, which made my job a lot easier. They proved very good companions to have on a rain forest walk. Ceinwen spotted this critter, which was barely 12 mm in length.
rain forest insect sp.
I was conveyed a joint communication by the girls that they’d love to see rain forest snakes. This request was met with enthusiastic support and we ended up seeing 9 snakes with 7 of them being found by yours truly. They belonged to 5 species out of which 3 were endemic. They were:
Green Pit Viper Trimeresurus trigonocephalus One lazing individual was found by me in the undergrowth by the roadside. Heard the girls going "awesome".
Green Pit Viper
Green Whip Snake Ahaetulla nasuta – 2 individuals gave amazing views.
Green Whip Snake - library picBoiga barnesii– A couple of this scarce endemic was found by me in a courtship behaviour. They are called 'cat snakes' due to their vertically elliptical pupils similar to those found in cats. This is a smaller relative of the infamous Brown Tree Snake Boiga irregularis, which caused avian carnage almost wiping out all the native birds of Guam, where RD is known to be working these days.
Barnes’ Cat Snake
Barnes' Cat Snake
Common Bronzeback Tree Snake Dendrelaphis tristis - The individual that Ceinwen spotted first of this snake eluded me but this one that I found posed well for everybody.
Common Bronzeback Tree Snake
Sri Lanka Keelbacked Water Snake Xenochropis asperrimus – 2 individuals at the usual spot. Endemic.
Our birding specials included 2 animated Chestnut-backed Owlets – the first of which was spotted by Dave at dawn. Chestnut-backed Owlet - library pic
With several decent mixed-species bird flocks, we saw almost all the specials expected to be seen at Sinharaja such as Sri Lanka Blue Magpie, Red-faced Malkoha, Sri Lanka Scaly Thrush, Malabar Trogon, and Crimson-backed Flameback
We also saw a brooding male Sri Lanka Frogmouth in a nest built on a tree branch above a trail. Observing it in the scope we noticed a ready-to-fledge chick. The angle of light did not allow good photography. But you can click here, here and here to see my previous photographs of this species.
We saw plenty of beautiful butterflies, which included this Rounded 6-Lineblue Necaduba berenice ormistoni. Rounded Six-Lineblue
Dragonflies too were out in good numbers. My top highlight was this pair of Sri Lanka Sabretails Megalogomphus ceylonicus in wheel position. This was a dragonfly-lifer for me.
Sri Lanka Sabretail
Additionally we saw Amber-winged Glider, Rapacious Flangetail, Dawn Dropwing, Spine-tailed Skimmer, Asian Pintail and Marsh Skimmer.
We saw three species of Robber flies and the best-looking one of them is shown below. The body length of this excluding limbs was about 6 cm as you can judge from scale of the Clidemia hirta leaf on which it is resting. It looked formidable enough to tackle even a Sabretail!
Robber fly sp. We also saw plenty of amphibians. They'll have to wait for another post as this has already swollen a bit.

Friday, 1 May 2009

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