I am not sure as to why you were not able to see or hear any animals at BG, but just this past weekend, we were able to see firsthand how the cemetery is just booming with life!
For example, almost every time that we visit the cemetery, we have seen deer both inside and outside the cemetery. You can see that the deer find the cemetery to be a nice place to relax for there are many areas where the grass and weeds have been flattened.
All over the cemetery you can always find frogs and toads hopping around. Ground squirrels can be found scurrying around as well. We came across a baby garter snake, and while taking a moment to relax, we saw a hummingbird flying around the flowers!
If you look closely at the pond, you will find many many frogs, as well as a muskrat who tends to make an appearance every now and then.
These are just a few of the animals that you can see at BG. I think that perhaps sometimes peoples minds are more focused on finding things other than animals so that may play a part in as to why these animals are sometimes aren't seen.