Thursday, July 2, 2009

Chambal diary: 2. Black-bellied Tern


Terns and Gulls are closely related and are usually associated with coastal areas. Indian inland rivers have breeding populations of a few species of terns that are specialized to reside and live off these rivers. The Black-bellied Tern is one such species. Good numbers of this species are found in the Chambal suggesting that conditions for breeding and feeding (mostly fish!) are currently good.

These birds breed in early summer on islands formed due to the reduction of the water levels. Dams, increased agriculture, and excessive accumulation of sand in the rivers can limit the formation of islands leading to reduction of breeding activity of birds like the Black-belled Terns. But enough lecturing - here are a couple more photos of this beautiful bird.


Two Black-bellied Terns mate on an island. Eggs will be laid on a small scrape on the sand, and both parents take turns to incubate eggs and to raise the chicks.

Black-bellied Terns are aggressive parents. Here one bird attacks a much larger egret - successfully - which strayed a little too close to the nest.

(Photos were taken on Apr 9, 2009 at the National Chambal Sanctuary, Etawah.)

Friday, June 19, 2009

Chambal diary: 1. The Gharial

The Chambal river is the border between Uttar Pradesh and Madhya Pradesh for a bit, and remains one of India's cleanest rivers. The National Chambal Sanctuary has succeeded in preserving very good populations of several truly bizarre yet incredible animals. The river is not strictly part of my PhD study area, but is very much part of the Sarus scape, and is one of my favourite locations in Uttar Pradesh. It therefore qualifies to be included in this blog! This small series of entries is a celebration of some of these denizens!

The Gharial is found only in south Asia. It is closely related to crocodiles, and has been around on Earth for a very long time.

It is an exclusive fish-eater - something that the turtles in the Chambal seem to know quite well!


The National Chambal Sanctuary in Uttar Pradesh has a great record of breeding Gharials - it is common to see young babies (top), and teens of all sizes (below) basking on the sands!

The crocodilian gets its name from the inverted pot-like mound on the end of the adult male's snout - a ghada in Hindi, if you will.

The Gharial has its set of problems even in the protected Chambal. I must underscore that these have diminished greatly thanks to an active forest department staff, and a force of dedicated conservationists and scientists. One of the more horrible things that used to happen a lot in the past was due to illegal fishing in the river. Gharials used to get stuck in fishing nets trying to get at the captured fish. Fisherfolk, in their hurry to escape, and to save the nets and fish, slashed at the captured Gharial with knives sometimes cutting off part of the snout.

Some of these Gharials lived (above), though not for long. They are probably not able to catch fish with their reduced snouts!

Many Gharials, however, are lucky to escape with part of the net sticking out of their snouts like forgotten floss (above).

Fishing has reduced greatly as a threat, and Gharials now seem to be able to live to ripe old ages (notwithstanding catastrophic and unpredictable events like a recent die-off - which has completely stopped, thankfully)!

I owe a great debt to the Uttar Pradelsh forest department for inviting me several times to participate in their Gharial and bird censuses in the National Chambal Sanctuary. Despite exceedingly limited resources, staff are very active to ensure that illegal fishing is reduced, and wildlife is as undisturbed as possible. A great resounding ovation to these folk, and to all the scientists and conservationists working to conserve these totally fab animals!

(A
ll photos were taken between Aug 2008 and Feb 2009 in the Uttar Pradesh portion of the National Chambal Sanctuary. For those interested in Gharial conservation and ecology, be sure to check out this fabulous website dedicated to these amazing animals: http://www.gharials.com. Two fabulous films have been made on the Gharials - one classic is The Ganges Gharial by the Bedi Brothers, and a more recent Crocodile Blues by Icon Films: both must-sees for Gharial and nature buffs!)

Its clean-up time!

Preen, dip, bathe, and scratch! These are the various ways in which birdies take good care of their precious feathers. Here are a few examples taken during clean-up time!

Preening is so very time-consuming! Here an Indian Skimmer (top) uses its unusual, spectacular beak to comb through feathers, and a Silverbill is busy at it while also showing off the preen gland (just above the tail) from where birds get an "oil" to keep their feathers ship-shape!


A bath can be a serene experience, like the Shikra in the water. Else it can be boisterous with water flying everwhere: for some Comb Ducks, one duck's bathwater is another's drink, apparently!

And finally, the soothing scratch! Here a Silverbill, a Black-necked Stork juvenile, and a Sarus Crane find out the real meaning of the phrase "for every itch, there is a scratch"!

(Photograph information: Skimmer - Etawah district, Apr 9, 2009; Si
lverbill preening - lucknow, Nov 27, 2008; Shikra - Barabanki, Nov 23, 2008; Comb Duck - Etawah, Apr 9, 2009; Silverbill scratch - Barabanki, Nov 25, 2008; Black-necked Stork - Mainpuri, Apr 7, 2009; Sarus Crane - Etawah, Feb 12, 2009. Thanks to Satish for the scratch-itch phrase!)