Last year was the first year that I had one on camera. There was a guy locally that trapped the wee outta them, but he quit trapping about 3 years ago. The population has skyrocketed since then. I've gotten 4 or 5 on camera the past month, plus at least 10 dogs, I'd say about 7 or 8 different dogs. Most without a collar.....
As a landowner, on my property they can be eliminated by any means, at any time of the year, and as a landowner I can give written permission for someone to do the same. I won't use poison tho.