The hatchlings are alive and well in the nest however the neighbors cats are still entering my backyard. Using a homemade automatic water spray repellent, my defense against the invading cats continues.
I will update this page with more info and behind the scenes pics very soon.
If you want to build your own animal water spray repellent I have made a video here with basic instructions:
The ebook give much more detail and a bunch of alternative uses.