The Greater Coucal, also known as Crow Pheasant is a beautiful large bird commonly seen in India and other regions of South Asia.
The photo above was taken on an evening while the bird was walking in the ground, probably in search of insects. They walk for long time on the ground and rarely sit on high branches. Also they are very poor in flying and I haven't seen this bird flying up in the sky like other birds.
These two photos (above and below) were taken when the bird was on a coconut leaf.
Their calls are very deep (high amplitude) 'goop-goop' like sound and can be heard at a very large area. While making calls rear side of the neck bumps out.
Identifications: Head, bills, neck, lower side, legs and tail are dark bluish in color and wings are brown. The eyes of adult bird are red and for an immature bird it is black. Lesser in size to a crow.
It belongs to the Cuckoo (Cuculidae) family.
Species: Centropus sinesis
Malayalam names: uppan, chempoth