Showing posts with label common. Show all posts
Showing posts with label common. Show all posts

Sunday, January 31, 2010

Common Jezebel


The Common Jezebel is a medium sized pierid butterfly found in many areas of South and Southeast Asia, especially in the non-arid regions of India, Sri Lanka, Myanmar and Thailand. More images and info inside.


The wingspan of both males and females range from 6.5cm to 8.5cm. The upper and under sides of the females wing  are similar to the male but the black edging to the veins and the postdiscal transverse bands on both fore and hind wings are much broader than that of the male.


This butterfly is common through most of its range except for the desert tracts, and up to an altitude of 7000 feet. It can be found wherever there are trees, even in towns and cities. The females can be seen flying amongst the trees in search of its food plants, while the males are more frequently observed visiting flowers for nectar or mud-puddling. It rests with its wings closed exhibiting the brilliantly coloured underside.

 

It has bright coloration to indicate the fact that it is unpalatable due to toxins accumulated by the larvae from the host-plants. Like other unpalatable butterflies the Common Jezebel is mimicked by Prioneris sita, the Painted Sawtooth. The Common Jezebel can be distinguished by the shape of the orange red spots on the hind wing. In the Painted Sawtooth these spots are very squarish whereas in the Common Jezebel they are more arrow head shaped. The Painted Sawtooth also flies faster and will also mud puddle.
Source - http://en.wikipedia.org/wiki/Delias_eucharis


All the shots on this post have been taken with the Canon 7D and the EF 100-400mm lens. I used an ISO of 400 hoping to utilise a faster shutter speed and minimise the noise. I managed to get within 2 meters of the butterfy tocapture these images. The butterflies were photographed in Anuradhapura, Trincomalee and Colombo. The largest specimens were seen in Trincomalee.

Wednesday, January 20, 2010

Common Kingfisher



The Common Kingfisher is found throughout Sri Lanka, although it is scarce at the highest elevations. It is not as common as the White-throated kingfisher but can be found at most village tanks (man made lake). More images and info inside. Click the images on this post to view larger versions.

It is easy to identify this species of Kingfisher due to its small size and overall blue plumage but may be confused with the extremely rare Blue-eared Kingfisher. The Chestnut coloured ear coverts differentiate the common Kingfisher from the Blue-eared Kingfisher. However, it must be noted that the Common Kingfisher can hide its ear coverts when it adopts a hunched pose. The female of the species is identical to the male except the female has an orange-red lower mandible.



The Common Kingfisher is widely distributed throughout Europe, Asia and North Africa. It is a common breeding species across most of its Eurasian range but is a winter visitor to North Africa. It inhabits clear, slow flowing streams and rivers with well vegitated banks. It frequents scrubs and bushes with overhanging branches from which it hunts.



The Common Kingfisher nests in a burrow, excavated by both birds, in a vertical riverbank.  The straight sometimes inclining burrow is usually 60-90 cm long and ends in an enlarged chamber. The nest cavity is unlined but soon collects a litter of fish remains. The Common Kingfisher typically lays five to seven eggs which are incubated by both sexes. Usually one or two eggs from a clutch fail to hatch as the parent can't cover them.



It hunts from a perch around one or two meters above the water with its bill pointing down as it looks for prey. Once prey is detected, it dives to seize the fish below the surface. The wings are open under water and the open eye is protected by a third eyelid. The bird then rises, beak first, and flies back to its perch. The Kingfisher then adjusts the fish in its beak so that it is held near the tail and then proceeds to beat it several times on the perch until the fish is dead. The fish is then swallowed head first.
Source - http://en.wikipedia.org/wiki/Common_Kingfisher



I visited the Thalangama tank on a regular basis during December and January with the aim of capturing a couple of decent images of this bird. I was fortunate enough to identify a perch which was frequented by a Common Kingfisher within the first couple of visits and managed to get a number of shots using the car as a hide. However, I wasn't too happy with these images as they needed to be cropped. I had to get closer to it. On my next visit, I waited until the bird had its back turned to me and got out of the car and moved closer on foot pausing whenever the bird looked in my direction. I managed to get within fifteen feet of the bird and captured the shots above. They have not been cropped. I was using the 100-400mm lens on the 7D.  


My Ping in TotalPing.com
Related Posts Plugin for WordPress, Blogger...
Get Paid To Promote, Get Paid To Popup, Get Paid Display Banner