Bridgeport definitely does have strays in my BP sometimes, and I have never had a mod. Strangely, it doesn't happen in every BP game.
What does happen in every game is that some arb family is either a dog/cat homeless shelter with the 'golden tag', and a horse shelter ditto. What gives you the heads up it's happened before you see it in map view, is you start getting the 'our cat/dog/horse gave birth...'
I know the minute a wild horse/unicorn spawns because when they do I get the 'flashing' lights that indicate the arrival of the 'shattered crystals' I get in the sky when they do.
Strangely enough, they haven't as yet caused the 'crystals' in Riverview, so I'm holding thumbs!
I must add, not only do I not have mods, I also never put a 'fishing spot' in BP either, had I ever done so, I would have seen that as the 'culprit'as regards the spawning wild horses and Unicorn.
I'm not actually sure where the horses spawn. I'll try to identify a place.
The horse shelter is always the Littler household.
Mostly the smaller pets are the Artist family in the apartment with Harry Marks, Matilda Smart + Alexis Fresco, but not exclusively. I have checked, btw, there are no spawners on those lots.
As stated, clicking on, + putting the food/equipment for the pets sees them removed in a Sim day or two, as does sending my sim there to scatter hay, brush/clean their hooves.
Alternatively, placing hay, + young Bronson Littler scattering it, causes it to be removed as well. The golden tag vanishes, as do the horses and foals.
Distinctly odd.
