• Columba livia is commonly known as Blue- rock- pigeon.

• It is a familiar slaty- grey bird with glistening metallic green, purple and magenta sheen on the neck and upper breast.

• Two dark bars on wings and a band across the end of the tail.

• It measures about 34 cm in length.

• Both the sexes are alike.

• Food chiefly comprises cereals, pulses and ground nuts, etc.

• The nest is sketchy pad of twigs and straw.