Simplify the following text for a Grade 7 native English-speaking person.
Original: The adult robin is preyed upon by hawks , cats and larger snakes , but when feeding in flocks , it is able to be vigilant and watch other birds for reactions to predators .
Simplified: The adult American Robin is eaten by hawks , cats , and larger snakes . When feeding together in flocks , American Robins will watch each other for signs of predators .