Simplify the following text for a Grade 8 native English-speaking person.
Original: Their voice is typical of most jays in being varied , but the most commonly recognized sound is the alarm call , which is a loud , almost gull-like scream .
Simplified: Their voice is normal of most jays in being varied , but the most commonly thought sound is the `` alarm call '' , which is a loud , almost gull-like scream .