I think he asked the robin questions.

It seemed as if they talked to each other in soft chirps." Colin lay back on his cushion and his eyes grew larger and larger and the spots on his cheeks burned.
"Tell me some more about him," he said.
"He knows all about eggs and nests," Mary went on.

"And he knows where foxes and badgers and otters live.

He keeps them secret so that other boys won't find their holes and frighten them.

He knows about everything that grows or lives on the moor." "Does he like the moor ?" said Colin.