We've had for a few years our drake chase our dog around or give her the evil eye and make her sit... but today, he actually attacked her, which he has never done before... he came running out of nowhere and charged her, then starting biting her neck and chest (he's an 8 pound cayuga mix, and she's a 50 pound labradoodle, by the way)... she was whimpering and was trying to run away with her butt tucked down under her but he was quite persistent. All puffed up and angry, too. I caught him and picked him up and he immediately calmed down and left her alone after... It seems we must separate ducks and dog! Our dog is a massive wimp and now she refuses to go outside if he's in sight, regardless of whether he's on the other side of the fence or not! Thank goodness he's peaceful and friendly with people, because he was stretching right up to bite her right on her nose. I'm telling you, birds seem to have no awareness of size differences. And neither, apparently, does the dog. Just thought I'd share. Duck antics!