The snakes love them. I have a LOT of trees on the property and a LOT of critters. I have to watch for snakes in overhanging trees this time of year, as they climb to feast.
Our back porch is a cafe for all manner of varmint. Dogs, cats, Pico the opossum, Freddy the Raccoon, a yet unnamed groundhog, Whitey the skunk, several squirrel, etc. In the wooded area we have deer, fox, rabbit, snakes, chipmunks, a hawk's nest, and who knows what else. We have heard coyotes barking but haven't actually seen one.