In the tree in which Mrs. Longlegs was perched and just below her he saw a little platform of sticks. He didn't suspect that it was a nest, because it looked too rough and loosely put together to be a nest. Probably he wouldn't have thought about it at all had not Mrs. Longlegs settled herself on it right while Peter was watching. It didn't seem big enough or strong enough to hold her, but it did. “As I live,” thought Peter, “I've found the nest of Longlegs! He and Mrs. Longlegs may be good fishermen but they certainly are mighty poor nest-builders. I don't see how under the sun Mrs. Longlegs ever gets on and off that nest without kicking the eggs out.” Peter sat around for a while, but as he didn't care to let his presence be known, and as there was no one to talk to, he presently made up his mind that being so near the Big River he would go over there to see if Plunger the Osprey was fishing again on this day. When he reached the Big River, Plunger was not in sight. Peter was disappointed. He had just about made up his mind to return the way he had come, when from beyond the swamp, farther up the Big River, he heard the harsh, rattling cry of Rattles the Kingfisher. It reminded him of what he had come for, and he at once began to hurry in that direction. Peter came out of the swamp on a little sandy beach. There he squatted for a moment, blinking his eyes, for out there the sun was very bright. Then a little way beyond him he discovered something that in his eager curiosity made him quite forget that he was out in the open where it was anything but safe for a Rabbit to be. What he saw was a high sandy bank. With a hasty glance this way and that way to make sure that no enemy was in sight, Peter scampered along the edge of the water till he was right at the foot of that sandy bank. Then he squatted down and looked eagerly for a hole such as he imagined Rattles the Kingfisher might make. Instead of one hole he saw a lot of holes, but they were very small holes. He knew right away that Rattles couldn't possibly get in or out of a single one of those holes. In fact, those holes in the bank were no bigger than the holes Downy the Woodpecker makes in trees. Peter couldn't imagine who or what had made them. As Peter sat there staring and wondering a trim little head appeared at the entrance to one of those holes. It was a trim little head with a very small bill and a snowy white throat. At first glance Peter thought it was his old friend, Skimmer the Tree Swallow, and he was just on the point of asking what under the sun Skimmer was doing in such a place as that, when with a lively twitter of greeting the owner of that little hole in the bank flew out and circled over Peter's head. It wasn't Skimmer at all. It was Banker the Bank Swallow, own cousin to Skimmer the Tree Swallow. Peter recognized him the instant he got a full view of him.