Suddenly a low whirring sound, directly in front, startled both hunters. A flock of ruffed grouse rose and flew with lightning-like rapidity among the trees.
"Too late," sighed Bob, lowering his gun. "Next time we must be better prepared."
"Yes, and what a supper we missed," said Sam, regretfully.
They had now come to an open space. Beyond it, along the shore of the river, was a thick clump of trees.
"Do I see anything over there?" asked Sam.
"Looks like a lot of birds," answered Bob.
"Hope we'll surprise the fellows with a fine brace of something."
"So do I. Look out, Sam. Don't make so much noise."
"My foot slipped on a stone," said young Randall, apologetically.
The boys worked their way forward with the greatest care.