Peter Learns Something He Hadn't Guessed.
Running over to the Old Orchard very early in the morning for a little gossip with Jenny Wren and his other friends there had become a regular thing with Peter Rabbit. He was learning a great many things, and some of them were most surprising.

Now two of Peter's oldest and best friends in the Old Orchard were Winsome Bluebird and Welcome Robin. Every spring they arrived pretty nearly together, though Winsome Bluebird usually was a few days ahead of Welcome Robin. This year Winsome had arrived while the snow still lingered in patches. He was, as he always is, the herald of sweet Mistress Spring. And when Peter had heard for the first time Winsome's soft, sweet whistle, which seemed to come from nowhere in particular and from everywhere in general, he had kicked up his long hind legs from pure joy. Then, when a few days later he had heard Welcome Robin's joyous message of "Cheer-up! Cheer-up! Cheer-up! Cheer-up! Cheer!" from the tiptop of a tall tree, he had known that Mistress Spring really had arrived.