Olaf often guides gunners through the waterways to find these birds; he shall take you also, and perhaps you may find some old Marsh Wrens' nests at the same time." The next morning was clear and warm, and the children tumbled out in their flannel bathing-suits to have a dip before breakfast.

Rap, by rolling over and over on the sand, was in the water as soon as Nat; but they did not venture out far, even though the tide was low, contenting themselves by splashing about in shallow places.
[Illustration: Turnstone.] Presently Nat spied something on the stony end of the bar that stretched out at the right of the beach, and pointed it out to Rap, who said: "They are some sort of birds: you had better get the glass, for even if we could go nearer to them, they would be sure to see us and skip." Then Nat brought the glass and they each took a peep.
"The bodies are like speckled Pullets', but the heads are like Pigeons' and the legs are very thin," said Rap.

"See! there is a different one, ever so much nearer over on this side, but I can't make him out very well.

Here comes the Doctor, all ready to go in swimming; of course he can tell us." "Those mottled birds with red legs are Turnstones," said the Doctor, after looking a moment.

"They are wading shore birds, who run about the rock bars and sandy beaches, turning over small stones for the food that is hidden underneath.