"They are Barn Swallows, who catch flies and little gnats and things close down over the water. Hear them talking and laughing!" But the Swallows really seemed to be playing some sort of game as they circled about, every now and then turning sharply and giving little rippling cries. The Doctor halted under a beech tree that spread its branches over a great mossy circle, seating himself on an old log that had been washed down the river and lay on the ground. For a minute the Veeries were silent; then from the tree over his head one sang a short tune--two sentences in a high key, then two a little lower and softer, like an echo. "It is different from any other bird-song," said Olive, "and every spring when it comes it seems as lovely as the first time I heard it." "Is that Veery only visiting here, or will he build a nest?" asked Nat. "He will build; and though he is so shy that we do not see him as often as the Wood Thrush, his song makes him one of the best-known of the family. He makes his home from the Middle States, east and west, all over the country, up to the far North; but as insects are his chief food he does not come as early or stay as late in his summer home as the Hermit Thrush, and always tries to reach the warmer countries before the trees are wholly bare and there is danger of snow." "Do they live up in the trees where they sing?" asked Dodo, after they had listened to the Veeries, who were then singing on both sides of the river. "No, on the contrary, he is one of the Ground Thrushes, who builds his nest close to the ground in such places as that bit of brushwood opposite; and as he spends most of his time about home we seldom see him, even in places like this where many pairs live. But we do not need to see a Veery to know of his presence if we once learn his song by heart, because we shall remember it as long as our hearts beat." The children sat silent for a long time, looking up through the trees at the coming of the night. Then Dodo nestled close to Olive and whispered, "I think that Veery is singing his prayers." Wilson's Thrush--Veery Length seven and a half inches. Upper parts warm brown all over, not so bright as the Wood Thrush is on the head, and not the least bit greenish on the tail. Breast and throat deep cream color, finely specked with brown on the upper part. Belly white. No white ring around eye. A Summer Citizen of the United States east of the plains. A Ground Gleaner, Tree Trapper, and Seed Sower. THE HERMIT THRUSH