Hello, I have a one year old Canada goose that started limping a couple of months ago. She walks on her tippy toes on one foot as the joint has completely seized in a straight position. Her beak is also white, bumpy, and flaky in parts. One part of her beak has tiny little holes in it like it has been pricked with a needle. We have brought her to several vets however they are not avian vets so have not been able to shed much light on the issue. She has been treated for worms and scaly leg and face mite. Both X-rays and bloods were taken however they showed up normal. Any ideas????