Without the ability to engage in these behaviors, birds may become depressed, anxious, or aggressive. Another concern with keeping birds in cages is the potential for mistreatment or neglect. Some owners may not provide proper care and attention to their birds, leading to poor living conditions, lack of exercise, and inadequate nutrition. In these cases, birds may suffer from issues such as obesity, feather plucking, or even death. On the other hand, some argue that keeping birds in cages can be beneficial for their safety and well-being. In the wild, birds face a number of threats, such as predators, harsh weather conditions, and habitat destruction.