Hi Judy. Are you saying another bird is pecking at her neck or she is doing this herself? Are feathers being pulled out? Are there bald places? Is there any injury or bleeding associated with the pecking? What are the dimensions of the cage and how many birds are sharing it? If there is more than one bird, do you know the gender of each? If so, how many of each? Has there ever been any breeding and/or any eggs? Tell me everything in their dailey diet. How old is this bird? The extra information will help me give you my best advice. Thanks, Patricia