I clicked the download button under the video and downloaded the tutorial on my Mac rather than trying to view direct. No problems opening and viewing with Quicktime player.

Ron, I just completed my BirdLife Photography Survey. I believe there is an abundance of videos already on the internet that covers how to process images using an abundant number of different processing softwares available these days. Many photographers are now moving away form Adobe (because of the relatively high ongoing subscription cost) and moving to cheaper but equally powerful software with one off licence fee and ongoing update support to the next full version.
What there isn't (with the exception of the work of Jan Wegener and Duade Paton) is the filed craft aspect of bird photography: how to find them, best lighting situations, how to catch the bird in the lens of a big zoom (and track of inflight). What to look for in the landscape for identifying good compositional potential; how to set oneself up to get the right image; what we should look for to get the right image. This varies not only between bush birds, shore birds and water birds but also between species as well so their is plenty of scope for tutorials. Basic tutorials for camera craft and specifics for bird types and species.

My experience is the same as Peters. Works fine using download button.