i just came within hairs length of losing one of my Showgirls to a cat yesterday. Looking to get a goose, duck, turkey, something cool looking, that will protect my flock. i only let my chickens out when i am in the yard. But this cat came right up and tried to nab my Maribou right under my feet. So, would like to get a large fowl that is friendly to people, not aggressive to chickens, but will sound an alarm or be aggressive to intruders. i love the Sebastopols, and have heard they are friendly. But will they go after a cat? Can they fly and would they be able to make it over a four foot fence? Are there other ducks or geese or turkeys that would fit my requirements better? And lastly, is there a good site i might peruse that provides details on caring for water fowl? Thanks so much for any input provided.