Duh…I forgot about this…
A couple of years ago I was involved as a volunteer for our local parks (Cleveland Metroparks) as a volunteer to help with a mammal survey. The parks have over 300 trail cameras out there. I was one of the volunteers to go through the thousands of photos that were taken. They used the Zooniverse website. You might want to look into starting a project there.
As a volunteer, it was easy to log in to the Zooniverse website and go through a lot of images. I know you are looking for a single species. It is different than searching/identifying whatever pops up in an image. But, it might work. I am almost certain that you can upload files in batches.
Someone mentioned something about using some AI image recognition software for the mammal survey. I will try to find that and relay the information.