I saw no bats in my garden this year, unfortunately. But then, I've been too busy with 3SIXTY5 every evening to sit outside at dusk, as I usually would. Hopefully they're out there, chomping up the mosquitoes and other flying insects. No death's head moths, however, which live in Europe and Asia. According to Wikipedia, the death's head moth has the ability to "emit a loud squeak" by expelling air through it's pharynx if it is molested.
I am an annoyed by being unable, as usual, to leave comments on others' blogs from my home computer! I will do so tomorrow at work. In the meantime, thanks to several people who left comments for me.