Hi.
Any animal that will alert to something unusual is good to have. (Plus an armory)
Canines are great. Felines too. Cockatiels and many parrots are good for intruder alert.
Me, since alligators and rattlesnakes get along, I prefer them on the perimeter for defense.
But that’s just me.
5.56mm
I have a black widow that hangs out above my workbench... doesn’t bother me and she just retreats when I use the louder equipment.
How does a cat alert you at 3 a.m.?