Hello new african grey owner. I am a proud owner of an african grey who is now 17 years old. Beak grinding if you hear your bird making odd little grinding noises as she's drifting off to sleep, don't be alarmed! Beak grinding is a sign of a contented pet bird and is commonly heard as a bird settles in for the night. Greys are so smart and fun. If you need help I will try. There is a good book that has helped me so much it is called an owner's guide to a healthy pet the african grey by j rach. You might have to get it through amazon. I received it when I adopted my bird. Good luck and this book is to die for if you own a grey.