Swamp desktop search gives you random videos
My Open Source search does exactly what you want. I can point it at a directory or drive and have it prepare a list of all mpg on that device. I can then set it to randomly pick a video then a random start point in that video. Then play it for a few seconds, freeze on the final frame for a few more secs. Then on to the next.
You can manually arrange the videos. Determine the video, the start point, the length of play, speed and if a freeze frame on the last is to happen. I often start a 1/2 second into videos that have a jiggle at the start due to hitting the record button. (same of the end of clip) Just don't play the last bit.
Video needs random. Otherwise you forget some of your best captures.
Shoot shoot and shoot video.
Is it uncut nature video or a fabrication? To edit or not.