Horse Tracking & Identification - Likelihood of Success?

I may have bitten off more than I can chew, but I have started on my first CV project. Basically I want to identify individual horses on our property (7 of them), plus the dogs. Then see if I can track & monitor them (phase 2).

Before I go through and label 800+ images, can anyone tell me if I am wasting my time doing it this way? Using CVAT, with rectangular bounding boxes. I have photos during the day …

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