Simplify the following text for a Grade 7 native English-speaking person.
Original: Juvenile Robins and eggs are preyed upon by squirrels , snakes and some birds , such as Blue Jays , Common Grackles , American Crows and Common Ravens .
Simplified: Some birds also eat eggs and juvenile Robins . These birds are Blue Jays , Common Grackles , American Crows , and Common Ravens .