text: Three adult birds shield the front of the young, and also flap their wings and ruffle their feathers to warn predators?
classes:  No, probably only the sleepers are weak - minded, competing for power.  Besides, probably only the sleepers are weak - minded, competing for power.  Yes, probably only the sleepers are weak - minded, competing for power.  Meanwhile, probably only the sleepers are weak - minded, competing for power.