I have a young pair about a year old. My goose has been laying an egg a day since February and in the last few days bald patches and bruises have appeared all down one side of her neck. As far as I can tell, it's from aggressive mating. Certainly from the position on her neck it looks like the gander has been pulling her feathers out and biting her while mounted. It's getting suddenly worse and the poor love has been laying fit to bust for weeks, she's starting to look tired. Is there anything I can do to stop him being so rough on her, or is there anything else it might be instead?