A Golden Retriever, A Hamster And 8 Birds Are Best Friends And Live In Harmony (23 Pics)

The cause could be that it is looking for extra attention. This would be more likely if it does it more when you have not been giving it much attention or if you tend to give it extra attention when it does it. Instead, it would help to give it attention throughout the day by training it, exercising it and playing with it. But, it would help to avoid rewarding it with extra attention when it becomes jealous unless necessary.