Sunny has had this odd behavior, even when he was a teen. Around 8 o'clock everynight, Sunny turns into a vampire. I call it that becuase he seems blood thirsty at this time. If you even walk by his cage he squawks at you. If you stand there and talk to him, he come up with his little beak open, making his awful squawking noises and hissing. He also bites harder then usual. We call this time period his "grouchy hour." In the morning he is the opposite: he chirps like crazy, cat calling to everybody and acting as cute as can be. Does anybody else notice some odd grouchy-ness in their birds??