As Peter looked at him it came over him that Bob White was the plumpest bird of his acquaintance. He was so plump that his body seemed almost round. The shortness of his tail added to this effect, for Bob has a very short tail. The upper part of his coat was a handsome reddish-brown with dark streaks and light edgings. His sides and the upper part of his breast were of the same handsome reddish-brown, while underneath he was whitish with little bars of black. His throat was white, and above each eye was a broad white stripe. His white throat was bordered with black, and a band of black divided the throat from the white line above each eye. The top of his head was mixed black and brown. Altogether he was a handsome little fellow in a modest way. Suddenly Bob White stopped whistling and looked down at Peter with a twinkle in his eye. “Why don't you go hunt for that nest, Peter?” said he. “I'm going,” replied Peter rather shortly, for he knew that Bob knew that he hadn't the least idea where to look. It might be somewhere on the Green Meadows or it might be in the Old Pasture; Bob hadn't given the least hint. Peter had a feeling that the nest wasn't far away and that it was on the Green Meadows, so he began to hunt, running aimlessly this way and that way, all the time feeling very foolish, for of course he knew that Bob White was watching him and chuckling down inside. It was very warm down there on the Green Meadows, and Peter grew hot and tired. He decided to run up in the Old Pasture in the shade of an old bramble-tangle there. Just the other side of the fence was a path made by the cows and often used by Farmer Brown's boy and Reddy Fox and others who visited the Old Pasture. Along this Peter scampered, lipperty-lipperty-lip, on his way to the bramble-tangle. He didn't look either to right or left. It didn't occur to him that there would be any use at all, for of course no one would build a nest near a path where people passed to and fro every day. And so it was that in his happy-go-lucky way Peter scampered right past a clump of tall weeds close beside the path without the least suspicion that cleverly hidden in it was the very thing he was looking for. With laughter in her eyes, shrewd little Mrs. Bob White, with sixteen white eggs under her, watched him pass. She had chosen that very place for her nest because she knew that it was the last place anyone would expect to find it. The very fact that it seemed the most dangerous place she could have chosen made it the safest. CHAPTER XV. A Swallow and One Who Isn't.