Yes you can, like the others have said, you might a an occasional loss. I've been letting out my bantam's for about three years with no losses and only have lost one adult to a hawk in the same time. My bantam rooster seems to have a good eye for hawks and I hope to have him around a long time. I don't let out my big girls all day, usually just in the evening cause they are a pain for the flower beds and garden. I don't have geese but I heard that a goose will deter hawks if ya keep em with em. Possums can be trapped out with a conibear trap and coons can be thinned with live traps. Stray dogs are best taken care by permanent silence removal of your choice. Movable pens have worked for me, no losses from any predators with em.