Study the following. Crows make their nests high up on a tree using all kinds of things, even pieces of wood and wires. A clever bird who does not make its own nest lays eggs in a crowds nest. The poor crow hatches them along with its own eggs. Which bird is this? (CTET Sept 2015)

• A. Indian Robin
• B. Barbet
• C. Koel
• D. Sunbird