There appears to be a lot of discussion about the reaction of wildlife and the flash of game cameras. Does the flash change or alter an animals behavior or way of life? My answer to this question is a definite "No".
In order to answer this question you must not think as a human, but as an animal whose life depends on being aware of all threats to its life by using their eyes, ears and nose to sense any danger. Should any animal feel threatened by a camera or flash, the answer is no and my trail photos show this to be true. Does the smell or odor of a human bother animals, that is also a no. Animals know whether a human is close by or has been in the area days before, their lives depend on knowing this as well as knowing whether any other predator is lurking about.
An example is a deer bedded down at night and smelling a bear, bobcat, coyote or even a cougar in the area and looking for food. First instinct for a human is to run, but a deer lives with this every day of its life and understands that where it lays it will have several routes of escape ready and will wait till it knows for sure of where the danger is coming from and then decides what should be done. They understand the results of making a mistake could be death, but it's not fear that keeps them alive but instinct through learned behavior.
I can go to the same trails year after year and get photos of the animals that use these trails because the camera doesn't make them change their habits or use a different trail. Here's two pictures of a bobcat taken in fast picture mode showing that the first flash had zero effect on the bobcat. I have many such photos of all kinds of different animals showing the same results.