I have an Alaskan Malamute / Siberian Husky cross. People think he's a wolf or a wolf hybrid all the time, even though he's not. He's 90 pounds and has one blue eye and one brown eye.
Before him, I had an Alaskan Malamute. 130 pounds.
Both dogs were the sweetest dogs ever to other people and dogs, but if a cat or anything else crossed their path, forget it... it was all over.
IMHO, if you like the look of the wolf hybrid, you can get one of the aformentioned breeds and have the look without the other problems a wolf hybrid has. But I would be VERY CAREFUL with it around your chickens... maybe if you get a puppy, you may be able to train it not to go after them. I personally would never let any dog around chickens, no matter how much I trusted it... I've heard too many horror stories; alot of them were here on this board.