My pet goose is 5 years old. She spends about half her time outside rambling around our yard and half the time inside with us. In the past couple days She has been doing this weird thing where she stands with her head drooping (like when she is drowsy) and her beak does a rapid chattering movement. This chattering movement occurs even when she is tucked into her feathers sleeping. She has never done this before. Is this a symptom of something serious? I will try to include a video of this behavior. In the past few months she has been losing more feathers than usual.