Your neighbor keeps their dog outside overnight in the winter time its a big dog but should you do something about it For example is it illegal?

It depends on what type of dog it is and what type of coat it has. Some large dogs are not made for the elements of winter; Say the Great done. It is a shorthaired dog with no undercoat. Then there is the Saint Bernard, it has a thick undercoat and is bread for the cold winters of the Swiss Alps. So the type of dog has a lot to do with the answer to this question.

Of course it is not illegal to keep your dog outside overnight in the winter time. Maybe it's cold but that's what fur is for. We keep our dogs in the barn in the winter and they do just fine. Not to mention having a dog inside is a big hassle.