Codes,
Welcome to the forum, this thread is liable to get going in some different directions so I'm going to give a quick shot at addressing what you are going to get for results.
Folks have different schools of thought on this, where you might find lots of folks happy to see animals caught in equipment in your area or region, and others may have similar flyers, many folks use either live animal pics outside of equipment (natural shots), or icons that look like wildlife/tracks/traps, etc....
No matter which way you go, just understand that while folks are usually extremely helpful, this business of ADC wildlife work is diverse and for many showing trapped critters is a good way to put off clients or prospective clients, or simply isn't necessary to get folks to understand what you do.
I would say that even in rural WY where ranching thrives, most ranchers and clients don't need to see a trapped animal to understand what you offer, though again, some would say this makes it clear what you are offering.
Just wanted to clear the air and explain that you might get folks who are more than willing to send you photos of this type, but these days you'll likely see some debate and discussion of this type arising from such a request.
Also, honestly you can get more photos quicker from folks on traptalk end of this forum as it wouldn't matter whether the animal was taken for fur or damage if you are just putting it in a flyer.
Hope that helps...or somethin.....