Asian Openbill Storks in Ranganathittu Bird Sanctuary

Trip to Ranganathittu Bird sanctuary is always fun and excitement! Roads from Bangalore to the sanctuary is so good that in a couple of hours you are there.

Ranganathittu Bird Sanctuary is one of the best weekend getaway for all bird lovers of Bangalore and Mysore. On lean days and early mornings of weekend there is hardly any crowd.

The boatmen who steer you around are knowledgeable and can identify all birds. Even you can identify them if you observe the peculiar features of different birds.

Asian Openbill Storks Ranganathittu

Asian Openbill Storks at Ranganathittu Bird Sanctuary Karnataka.

Asian Openbill Storks in Ranganathittu

On this trip I learned to identify Asian Openbill Storks at Ranganathittu Bird Sanctuary.

Can you identify Asian Openbill storks? Well, it is easy! You will not fail to identify an Openbill Stork, if you see one in a huge flock of different species of storks. The name has the clue.

Observe carefully the features of their beaks. Their weirdly shaped bills give them away. Notice its peculiar huge bill with arching mandibles leaving a narrow open gap between them. They are grayish white with black in their wings.

We spotted few of them at Ranganathittu bird sanctuary. The chicks had very short bills and we found them clamoring around the mother bird each time she would come with a catch in her bills.

Identify Asian Openbill Storks

Asian openbill storks Ranganathittu, Anastomus oscitans.

This species of storks has a much specialized feeding habit. Their diet usually consists of frogs, crabs, large insects, snails and small living things. But their favorite is the golden apple snail. The unique structure of their bills help them to crack open the thick shell of the snails and separate the soft body. Their bills are well adapted to handle hard slippery shells of the snails.

Features of Asian Openbill Storks

These birds have a grayish plumage with glossy black wings and tail that have a green or purple sheen. Their shorter neck length is another feature that helps in distinguishing it from other storks.

The short legs are pinkish to grey which turn reddish prior to breeding. During breeding season these birds have white wings instead of their usual dull gray color. We could hear their low honking notes when greeting a partner arriving at the nest.

Breeding time of Asian Openbill Storks is between November to March in southern India and Sri Lanka. These are local migratory birds, but some do migrate in from Southeast Asia. They coexist well with egrets, spoonbill storks, and other species of storks.

Their nests that we saw at close distance were just like a circular platform of twigs. The chicks were slightly grown up with new feathers and a face that only a mother can love.

Chick of Asian Openbill Storks Ranganathittu Sanctuary

Chick of Asian Openbill Storks Ranganathittu Sanctuary

Why Farmers Love Asian Openbill Storks

During 1980s golden apple snails were introduced in India from South America. It was meant to be included in diet for people. However they have multiplied at a fast rate and have started harming the crops of farmers. They have become more of a pest now.

Asian Openbill Storks feed on these snails. Because of their peculiar bill shape they are able to crack open the shells and consume the soft flesh within.

Since these snails attack rice crops the most, Asian Openbill Storks are seen to flock around the paddy fields. They spend most of the day in wetlands, agricultural fields, and marshy areas. Some day I would like to see how they break open the shells of the snail.

Asian Openbill Stork

Timings of Ranganathittu Bird Sanctuary

It is open on all days from 9am to 6pm.

Address is Ranganathittu Road, District Mandya, Srirangapatna, Karnataka 571438.

Asian Openbill Stork Ranganathittu Sanctuary Karnataka India

(This post was first published on June 26, 2009.)

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