Science & Nature: Boredom Can Lead To Madness In __________. When Caged By Themselves And Neglected For Long Periods Of Time, These Intelligent, Sociable Birds Can Easily Become Mentally Ill. Many Inflict Wounds Upon Themselves, Develop Strange Tics, And Rip Out Their Own Feathers. The Birds Need Constant Interaction, Affection, And Mental Stimulation