Showing posts with label chestnut. Show all posts
Showing posts with label chestnut. Show all posts

Wednesday, January 27, 2010

Indian Paradise-flycatcher



The Indian Paradise-flycatcher is usually about 20cm in length but the long tail streamers double this. The bird in the images on this post is roughly three years old. The adult Indian paradise-flycatcher has a white body but the juvenile has a chestnut coloured body, similar to the Ceylon Paradise-flycatcher. The juveniles start moulting into their white plumage in their third year. The bird pictured in these images has just started the moulting process. More images and info after the jump.



The females of both species are similar to the males in colour but lack the long tail streamers. Several races are recognised but further study is required. Subtle differences in colour and markings differentiate the races from each other. The race found in peninsular India and Sri Lanka has very long streamers and crests.  The Paradise flycatcher is a noisy bird with a sharp skreek call. It also has short legs and sits very upright whilst perched. They bathe in small pools of water in the afternoon by diving from a perch.



I have grown up with this bird visiting my garden towards the end of every year. We started recording the date which it first appeared and found that for a period of over ten years, the variation was around 10 days.



It was pretty easy to see this bird as it arrived in our garden at roughly the same time every evening. It also followed the same path to the pond where it had a bath. Unfortunately the perches it used were in the canopy or quite well hidden from view. The bird was also very shy and would fly off as soon as it saw anyone. This made getting a clear shot of it almost impossible.



The image above clearly shows the tail feathers and some of the upper parts moulting into white plumage. This would mean that the bird is three years of age.

These shots were captured over a period of a month between mid December and mid January. The shots were taken when the bird had paused for a relatively long period of time to feed. All these shots were taken with a 100-400mm lens mounted on a Canon 7D. The ISO was around 400 in order to use a faster shutter speed.

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.