How does the antler (buck) detection work?

For the deer species you enable, a separate vision model takes a close-up of the animal's head and judges whether antlers are visible. Because trail cameras often frame only the body, we expand that crop upward so the head is included. It's deliberately conservative: only a clear result flags the animal as a likely buck (male), while unsure cases go to needs review. Importantly, a missing or hidden antler is never read as "female" — a doe, cast antlers, or a turned or cut-off head simply can't be judged. Treat it as a helpful hint to confirm, not a guarantee.