Saturday, 25 May 2013

Video of the Heart-spotted Woodpecker (Hemicircus canente)

On a recent visit back to Karimanoor, A pair of Heart-spotted Woodpeckers were quite actively present around the house.

DSC03926

These normally shy birds were happy to move around in close proximity to the house and human presence and managed to give some good photo opportunities.

DSC03927

On top is the male with a black forehead, while below is the female with a white forehead.

DSC03929

What was a rare sighting earlier has become more common. I guess this is a breeding pair that is nesting somewhere in the vicinity.

DSC03931

I even had time to switch to video and follow their movements for a while. The video is displayed on top.

DSC03933


Share/Save/Bookmark

Sunday, 3 February 2013

Little egret

The Little Egret (Egretta garzetta) is a small Heron, about 25 inches tall. It has long legs and long neck and is all white in plumage color.

DSC02756

It has a black beak in all seasons and is small in size. The black color of the beak is opposed to that found in the cattle egret and reef egrets, which never have black beaks. The former always has yellow and in the latter, it may be grey or white. The intermediate egret and the great egret have black beaks only in the breeding season. It is otherwise yellow.

DSC02664

In addition this species possesses long black legs but its feet are yellow. During the breeding season, breeding adults develop two long, slender nape plumes. The subspecies Egretta grazetta grazetta which is found in India has a grey-green patch of skin between the bill and eyes. In breeding pairs this becomes a bright red or blue colour.

DSC02665

The little egret is generally found throughout India, around water bodies, often in small parties, wading around shallow water or in grass. It is thought to be dependent on sight for locating its prey and thus prefers clear water.

DSC02667

It generally feeds on fish but takes insects, crustaceans and molluscs too. They are known to run within water with raised wings to dislodge fish from their hideouts.

DSC02755

It breeds in groups on trees, usually in the company of other herons and ibises. Its breeding season varies from July/august in northern India and December in south.

DSC02757

Seen at Rachenalli lake, Jakkur, Bangalore on 3rd Feb on a foggy morning.


Share/Save/Bookmark

Friday, 30 November 2012

Tail-less Whip Scorpions (Amlypygids)

 

Featured in these images are creatures known as Amblypygids. A creature belonging to the same class as spiders and scorpions – Arachnida.

Amblypygids are also called as Whip Spiders or Tailless Whip Scorpions. They however, lack the tail that is present in scorpions and whip-scorpions.

The Amblypygi have a set of long spiny pedipalps extending out in front of them. These are used for predation to seize prey such as crickets, spiders, moths etc. Although they look scary, they are harmless to humans.

They are mostly nocturnal and hide under, barks or logs or leaves at daytime. They walk sideways with their long front legs extended and when they catch prey with these, they are torn up with their chelicerae (jaws). Their long pedipalps are also sensory in nature.

After mating, eggs are carried by the mother Amblypygid and when the young ones hatch, they climb onto the mother’s back and are carried by her until the next moult.

More on Amblypygids


Share/Save/Bookmark

Saturday, 25 August 2012

Malabar Pit Viper

The Malabar Pit Viper (Trimeresurus malabaricus) is also sometimes referred to as the Rock viper or the Malabar rock pitviper.

DSC09766DSC09638

It is a venomous species of snake belonging to the Crotalinae or the pit viper family. The Crotalinae are characterised by the presence of  a triangular head and heat-sensing pit organs located between the eye and the nostril on either side of the head. The pits are openings to a pair of very sensitive infrared detecting organs, which helps them to find the small warm-blooded prey on which they feed.

DSC09639DSC09642

They are found  in Southwest India in the Western Ghats between elevations of 600-2000 m and are typically abundant during the monsoon season. These snakes are mostly nocturnal, preferring to find a cool spot where the bask during the day time. The chosen spot is usually a favourite to which it returns day after day.

DSC09644DSC09646

Even though they become active at night, they are by nature ambush predators, and will wait patiently for the prey to come to it rather than stalk the prey. Once the prey is near enough, the snake strikes with alarming speed and injects its venom.

DSC09762

The bite of this snake is generally not life-threatening. The venom may cause pain and swelling but is known to subside after a day or two. The reason for this may be the small doses of venom injected per bite. However, the bite may be more dangerous in children.

DSC09673

Several colour morphs are commonly observed in this species, including yellow, green and brown. The reasons for the different morphs and their contributions to its ecology are unknown.

DSC09767

These pit-vipers are egg-laying and are thought to engage in guarding their eggs as well. Very little is known about the ecology of this species and more studies are required to uncover the habits of this snake.

  Sighting Information:
Location: Agumbe
Date: 22nd and 23rd June 2012
Time: Various times
Weather: Monsoon rains
Other Details: The pictured images are of three different individuals from three locations within Agumbe Rainforest Research Station.

Share/Save/Bookmark

Saturday, 11 August 2012

Brown-cheeked Fulvetta

DSC09714

The Brown-cheeked Fulvetta, (Alcippe poioicephala) is also known as the Brown-cheeked Alcippe and was formerly referred to as the Quaker babbler.

DSC09725

It is a resident breeder in India, generally found in the undergrowth in moist forests and scrub jungle. It is a dull coloured bird characterised by brown above, a greyish cap, dark cheeks, a whitish throat and a short dark beak.

DSC09728

They generally feed on insects and nectar but here, they can be seen feeding on berries. Usually occur in groups of 6-10 birds. They are generally hard to sight due to their preference for the undergrowth but can be heard due to their characteristic song:



DSC09729

They breed in between Jan-June. Nests are placed in forks in branches and is cup shaped. Two or three eggs are laid.

DSC09731


 

Sighting Information:

Location:

.Agumbe, Karnataka

Date:

23rd June 2012

Time:

1:00 PM

Weather:

Cloudy with interspersed rain

Other Details:

Several individuals seen together in a mixed foraging group along with White-bellied tree pies and Grey-headed bulbuls.


Share/Save/Bookmark

Tuesday, 3 July 2012

Grey-headed Bulbul

DSC09736

The Greyeaded bulbul (Pycnonotus priocephalus)  is an endemic species of bulbul found in the Western Ghats. It has an olive green colour with a grey head, crown and throat.
DSC09739
The forehead is also olive green and the flanks are dark grey. The undertail coverts are also grayish. The beak is greenish gray while the legs are pinkish. The iris of this bird is a distinct bluish white colour.
DSC09740DSC09743
They are seen either singly or in groups or 4-8 individuals. It is patchily distributed and listed as “Near threatened” by IUCN due to steady forest clearance where it occurs.
DSC09744
During breeding season, it is restricted to the mid-elevation evergreen forests between 700-1400m elevation while inthe non-breeding season it is present in lower altitude moist deciduous and scrub forests. It feeds on berries and fruits.
DSC09745
The call is a sharp tweet with just a single syllable:

Nests are commonly built in reed bamboos and is a platform. Only a single or sometimes two eggs are laid. Both parents take part in incubation and feeding.
  Sighting Information:
Location: Agumbe Rainforest Research Station, Agumbe
Date: 23rd June 2012
Time: Afternoon; 1:10 PM
Weather: Raining
Other Details: A group of Grey headed bulbuls, seen with Brown-cheeked Fluvettas, Flowerpeckers, Sunbirds, White-bellied Tree-pies etc.

Share/Save/Bookmark

Sunday, 1 July 2012

Small-handed Bush Frog

DSC09783

Featured here is the Small-handed bush frog (Indirana semipalmata) also known under the names Brown Leaping Frog, South Indian frog or Small-handed Leaping frog.

DSC09778

The distinctive features of this frog include its large tymphanum, granular warty flanks. The temples and the sides of the eyes are black. A dark band is also present between the eyes at the top of the head. The limbs also has dark stripes across, which can barely be distinguished in these images.

DSC09779

The toes and finger tips are dialated into discs and this species gets its name from the half-webbed toes.

DSC09780

It is generally a terrestrial species, occurring around vegetation near water bodies. It is however endemic to the Western Ghats and occurs at altitudes of between 200 and 1,100m above sea level.

DSC09781

They lay eggs on wet rocks and trees and the tadpoles remain in such thin films of water and undergo metamorphosis without ever entering standing water. They are kept moist by water dripping from rain and rain.

DSC09612

The tadpoles are known to have hooked beaks which allow them to move along hard surfaces. The tadpoles are thought to feed on bark material and on plankton growing on the bark.

DSC09782

This frog is locally abundant and is listed to be of least concern by IUCN.

  Sighting Information:
Location: Agumbe Rainforest Research Station, Agumbe
Date: 24rd June 2012
Time: Morning; 10:30 AM
Weather: Cold, Raining
Other Details: A singe individual seen sitting in an areca palm frond on the veranda. The tadpoles are seen on the walls of the same veranda, about a meter away from where the frog was.

Share/Save/Bookmark