11.   Female ground squirrels give an altruistic alarm call that endangers the caller while effectively alerting the young nearby.

12.   In cities, Caffrey said, a cat on the ground near the nest tree is likely to trigger a loud chorus of alarm calls.

13.   In research with ground squirrels, he found both self-sacrificing and selfish alarm calls.

14.   Piercing alarm calls had rung out and from a thickly wooded slope the goshawks had burst into view.

15.   Police responded to an alarm call and saw the man running naked down the street.

16.   They were alarm calls.

17.   When not broadcasting its presence with alarm calls, the goshawk patrols the woodland corridors swiftly and silently, often surprising its victims.

18.   Recordings of the calls of wounded starlings and the alarm call of the jay, which warns other species of danger, were to have been played simultaneously.