Oh man, that Yard Enforcer is amazing! I might have to get one for my wife's garden.
For now, I'm just looking for something that'll let me know if there are deer in the yard. We have so many that deterring them is probably a lost cause. The Blink camera solution looks promising, thought it'll probably require several cameras. (I have to go all the way around the house.) I could probably get by with motion sensors assuming I could get good coverage and minimize false positives. The search continues.
These ideas are why I love this community.