feral

villi- wild Wild, untamed, especially of domesticated animals having returned to the wild.
puhekieltä Contemptible, unruly, misbehaved.
A domesticated animal that has returned to the wild; an animal, particularly a domesticated animal, living independently of humans.
1960 May 19, w:New Scientist|New Scientist, Notes and Comments: No homes for the pigeons, http://books.google.com.au/books?id=3Oum77FgfhcC&pg=PA1261&dq=%22ferals%22+-intitle:%22%22+-inauthor:%22%22&hl=en&sa=X&ei=goRPT9W4Bo6OmQX-maGRCg&redir_esc=yv=onepage&q=%22ferals%22%20-intitle%3A%22%22%20-inauthor%3A%22%22&f=false page 1261,

Although it is not difficult to induce domestic pigeons to nest in boxes fixed to trees, London′s ferals are not yet acclimatized to arboreal holes.

Traffic, abuse, inhumane traps, and accidental poisoning are other hazards ferals must face.(..)In England one gamekeeper claimed to have killed over three hundred ferals, while another brought home pelts to his wife so that she could design rugs from cat skins as a source of secondary income.

You trap ferals, neuter them, and give them their rabies shot. Maybe distemper.

If you′ve ever put a saucer of milk out for a hard-luck kitty, or if you′re spending your lunch hour sharing sandwiches with the ferals near your office, this is the chapter for you.

The intolerance which was directed towards us during the early years has now shifted to ‘the ferals’ who embrace a new version of nonconformist behaviour that even some of us in their parent′s generation — the Aquarian settlers — don′t like. The ferals are the scapegoats for the drug problems here, and are highly visible since many of them have nowhere to live.

A pod of ferals was moving towards the exit, a half-dozen soap-shy, low-tech, bush-dwelling hippies.

It′s the rootlessness of the ferals that people don′t seem to trust; their claims of connectedness to all wild places touches a nerve. Even residents of Maydena who want to see the Florentine protected dislike the ratbags′ itinerancy.