But without prompting, Asta-ha at the bottom already put her fingers into her mouth and blew two short, sharp whistles, followed by a longer third.

Then, with three sharp whistles, they melted away into the field.

The court crier's loud-speaker, overhead, gave two sharp whistles and began: "Now hear this!

A metallic noise from the hallway made everybody drop behind furniture, and they waited quietly until two sharp short whistles sounded.

Instead she heard an unmistakable rhythmic sound, like the susurration of a waterfall punctuated by sharp, enthusiastic whistles.

At a signal of four sharp whistles the sailors hoisted the coffin on to the gun carriage draped in purple, red, and white.

The young communicate with their mothers with sharp whistles and use their tongues during nursing.

Kaloro let out a series of sharp whistles and swam excitedly several times around the now barely moving beast.

The calls are series of piercing sharp whistles rising in pitch but shrill and choppily delivered.

The less restrained members of the audience let loose a flurry of sharp whistles.