I use a lot of different locations for birds that are setup for both day and night photos.The trick is to aim the camera at the end of the log where a bird would land and look over a swamp or creek bottom for food. Then make sure the background behind the log is farther than the camera flash will reach at night so the bird or animal is a silouette against a black background. The flash will light up the animal for a great picture at night and during the day the background will be fine.
Here is an example of using a log with a hawk during the day and an owl at night. I did trim a couple of ferns that were in the way prior to the owl picture but was pleased with the results. You can also notice in the day picture the old leaves under the end of the log but were too far for the flash to show them at night.