Growing up, there was a toy poodle in the house. He was a watch dog extraordinaire. Over time, on that street, every house got burglarized, except ours. Like Napoleon, he didn’t realize he was tiny. He had grandiose ideas about ruling, well, not Europe, but our street. My point is that if you are looking for a canine alarm system, it doesn’t have to be a big scary-looking dog. A tiny dog can sound the alarm as well as a big dog.
I really like the idea of using geese as an alarm system. And if geese attack a criminal, I can’t really see him complaining about it in a courtroom. “She kept a flock of violent, untrained, unvaccinated geese on her property!”