i made an adoptable species on chicken smoothie called Newtons and this is one of the pictures I made to help bulk out their info!
Newtons are like foxes, stray cats, deer and kea all rolled into one. They're really really social and surprisingly altruistic! strange Newtons will offer other Newtons food and shelter, and will often defend them even if they do not know the other! They generally hang in family groups, though these groups are less 'blood family' and more 'we all work great together' family! They are really really inquisitive and playful, and in the city where they go feral will congregate into massive family groups, with some groups numbering in the hundreds!
They all tend to move as one mass, and will leave a trail of destruction in their wake as they go! They tip over trashcans, dig up beds, and are general nuisences. People have watched them go around purposefully bursting every car tyre they see because they like the sound.

This poor sucker probably fed one of the troop, who promptly went and brought the entire family along! Any opening- a cat flap, a window left ajar, an open vent- will suffice to get them in.
They'll probably be looking at a large cleaning bill when they get back!