Certain birds make good watch animals. Certain geese, guinea hens comes to mind.
I’d stay away from cassowary’s though, they can kill their owners.
I had never thought of regular birds... I’ll think on this.
But regarding the Cassowary, I have put extensive research into how to implement this particular bird into my defense strategy. I planned to have deep pits with 3 to 6 Cassowarys per pit all covered with palm fronds situated in line with likely ingress and egres...
just kidding, I had to Google Cassowary
Apparently guinea hens squawk at almost everything.
I recently listened to a recording of them. They are very noisy birds overall.
Not for you if you value peace and quiet.
I’m going to try other means to deal with ticks before I resort to guinea hens..