Common Woodshrike

The Common Woodshrike is  found in southern Asia (in Nepal, Bhutan, Pakistan, India, Bangladesh, Burma, Laos, Vietnam, Cambodia and Thailand). It is a greyish brown bird with blackish stripe below the eye and white underparts. Sexes are alike. They perch on upright on the tress or wires to hunt moths, beetles, caterpillars and other insects. It was very calm and made no calls while approached. 

Kallanai (Grand Anicut). 'Kattuk keechchan' in Tamil காட்டுக் கீச்சான்