Before long, a sudden thirst came upon Sergeant Henny-Penny. Fortunately they were near the bubbling spring that marked the beginning of Fox Valley, and the whole Band halted and drank in the most advanced military manner, to wit, by bending the rims of their felt hats into a cup. This method the Captain assured them was far superior to the more usual system of lying flat on their tummies, and had the approval of all great military leaders from Gideon down.
Right in the very midst of their drinking, there sounded from the thicket a hurried warble of a mellow timbre, the wood-wind of the sparrow orchestra, and they caught a fleeting glimpse of the gray and tawny which is worn only by the fox sparrow, the largest of the sparrows and the sweetest and rarest singer of them all. A moment later a song sparrow sang. When he stopped, the strain was taken up by the fox sparrow in another key. Three times through he sang the twelve-note melody of the song sparrow, and his golden voice made the notes of the other sound pitifully thin and reedy. Then the fox sparrow threw in for good measure a few extemporaneous whistled strains of his own, and seemed to wait expectantly--but the song sparrow sang no more.
Through the long narrow valley, hidden between two green hills, marched the Band, following the hidden safe path that generations of foxes had made through the very middle of a treacherous marsh. As the road bent in toward Darby Creek, there sounded the watchman's rattle of the first kingfisher they had heard that year; and as they came to the creek itself, a vast blue-gray bird with a long neck and bill flapped up ahead of them. It was so enormous that Alice-Palace was positive that it was a roc; but it turned out to be the great blue heron, the largest bird in Eastern America.
From the marshy fields swept great flocks of red-winged blackbirds, each one showing a yellow-bordered, crimson epaulet, proof positive that Mrs. Blackbird was still in the South. Mrs. Robin had come back the week before, which accounted for the joy-songs which sounded from every tree-top. Until she comes, the robin's song is faint and thin and infrequent. Beyond the creek they heard the "Quick, quick, quick," of the flicker calling to spring, and before long they came to the tree where he had hollowed his hole. A most intelligent flicker he was, too, for his shaft was sunk directly under a sign which read "No Shooting Here."