Franklin uses the image of a stationary bird to suggest that remaining passive can make a person more vulnerable. A bird that stays in one place presents an easier target than one that moves, and the comparison extends this idea to human conduct. In changing or competitive circumstances, inactivity can allow difficulties to catch up or give others an advantage.

The saying does not imply that constant movement is always wise, since caution, patience and deliberate inaction can sometimes be appropriate. Its broader point is directed at complacency rather than stillness itself. When circumstances require a response, failing to adapt or act can increase exposure to avoidable risks. The proverb therefore encourages alertness and initiative, particularly when a situation is changing and remaining passive would make a person easier to disadvantage.