Recreational, non-recreactional.....those terms are all in the eye of the beholder, so no use worrying about that.
The only distinction that matters is whether you're a professional chaser or not.
For that, IRS has some pretty clear guidelines. You receive more than $600 a year from any one source, it will (or should) be reported on Form 1099-MISC as non-employee compensation. That put's you in business and from that point on you need to keep track of your expenses - mileage, equipment depreciation, film, out of pocket expenses, and so forth.
Not only income tax, but self-employment tax applies, and that can add up. So, $600 is the magic number - not what the press says. Keep track of your stuff. Even if you bought a piece of equipment before the year you hit the magic number, if you're still using it in the year you did become a "professional", it will still be depreciable. Keep track of yourself and don't worry about the labels.