Hi i have 2 parakeets 1 male and 1 female. Well at night when i turn off the lights the male screams as if somebody is hurting him and he hits himself really hard on the cage from flying around so much. As soon as a turn the lights back on he calms down and goes back to how he was and it doesn't affect my female in any way. I just wanted to know why he does this every night and what i could to to make him calm when i turn the lights off at night. Please help.