I am noticing behavior changes in my pair recently. Recently they have been wandering around like they are looking for something. Yesterday they came over to the front porch (which is a distance from the horse property) like it was their intentional destination, checked things out, then went back to the horse property. Hubby said he was told the geese (there was a large group on property before) used to nest under porch. Hubby also said that one was starting to act aggressive towards him at evening feed… but they have never liked him much. Then this morning, one of them hissed at me!! This is a first!! I was told they were a pair of ganders in their teens (but the person was not sure), so I am surprised to see what I am assuming is breeding behavior?? Does this sound like breeding behavior? Would a pair of ganders show this behavior? If it is a goose/gander pair, how late in life can they breed?