1.   Outside, over the low monotonous drone of the air conditioner, she could hear the mating call of a cricket.

2.   Bauernfeind, however, wondered whether the buzzing was entirely a mating call.

3.   Biologists have taken stock of the muzzled mating calls and concluded recently that the fragile toads are disappearing at a dangerous rate that throws their survival in the balance.

4.   But identifying the nocturnal mating call that was keeping Souza and her neighbors awake has been far easier than silencing it.

5.   It is the mating call of a blue grouse in deep forest wilderness, and it really does sound like someone thumping on a hollow log.

6.   Its claim to fame is that it burrows into the ground to build a chamber that amplifies its mating call.

7.   Last September, Apple upgraded Mac OS X and offered it as a mating call to reluctant users.

8.   Take the mating call, which sounds something like a bagpipe choking on a steak.

9.   Their mating call, audible a mile or more away, has been compared to the sound of bubbles, or gulps, underwater.

10.   Named for its bright mating call, the piping plover has pale-colored plumage that blends with sandy beaches and shorelines.