Complex sentence: Some stock sound effects have been reused so many times that they have become easily recognizable and some even clichés, such as the scream of a red-tailed hawk (e.g.,), castle thunder, or the Wilhelm and Howie screams.
Split into simpler sentences: Some stock sound effects have been reused so many times that they have become easily recognizable and some even clichés. Examples of these include the scream of a red-tailed hawk, castle thunder, or the Wilhelm and Howie screams.