Helen - I couldn't tell from your post - what do you call the John Deere thing that a farmer drives around on?

I'm amazed that the John Deere sense wouldn't be the first one that comes to mind on hearing the word tractor (at least for a US'n - I never know which way the rest of y'all's gonna jump), and I'm a city boy, born and raised. I call the thing that pulls the trailer on an 18-wheeler a semi, like Signorina Bean.

And I'm with Jackie - your Bobcat™ is just a brand name for an itty-bitty front-end loader.