# Tractors

## What to look for
- **Large rear wheels** — much bigger than front wheels, with deep treads
- **Small front wheels** — steering wheels, noticeably smaller
- **Cab** — enclosed or open operator station at the rear
- **Hood/engine** — long front section housing the engine
- **Exhaust stack** — vertical pipe on top or side
- **Hitch** — rear attachment point for implements
- **Farm context** — fields, barns, rural roads

## Common false positives (DO NOT select)
- Construction equipment (excavators, bulldozers — different shape)
- Large trucks
- ATVs / utility vehicles
- Lawnmowers (much smaller)
- Forklifts

## Edge cases
- Tractor with attached implement (plow, trailer) — still count the tractor
- Old/vintage tractor — same basic shape
- Tractor at distance — look for the big-small wheel ratio
- Tractor partially visible — count if wheel size difference is clear