Guard Bees are stationed outside the entrance of the hive and their job is to sound the alarm in times of danger, such as attacks from marauding predators such as bears, mice, skunks and squirrels. The Guard bees sound the alarm by secreting pheromones (chemical messengers) into the air. When the bees in the hive detect the alarm pheromones, they swarm out of the hive and attack the predators and protect the hive.
