Life is a combination of magic and pasta.

By the study design, the assumption was that they'd find out about the deer, collect it, put it in the forest, stake it down so bigger game can't make off with it, and set up the cameras for observation so no clue why there's a need to take the deer back and store them.

It sounds like the point of the study is to find out how it would improve the ecosystem that instead of the people that clean up the deer and dispose of them, if they instead were putting the carcasses in the forest instead.