In the Netherlands there is a small forest where chickens live. Most of them roos and cockerels. People who bought or hatched chicks often dont want to kill the surplus. Especially not cockerels, but cant keep them because of the noise or the fighting in the coop/run. So the population got bigger and bigger.DAY 64 CLUCKMAZING FACT~
"On the Island of Kauai in Hawaii live thousands of feral chickens — once-domesticated birds that have reverted to a wild state — that provide a unique look into how domestic animals and their genes respond to the natural environment. Recent research shows that these birds are hybrids of the red junglefowl-like chickens that Polynesians brought to Hawaii and the more modern domesticated chickens introduced to Hawaii by European and U.S. settlers. It's thought that hurricanes that hit the island in 1982 and 1992 released chickens from people's backyards and into the forests, where they met and bred with the remnants of the Polynesian junglefowl's (Kauai lacks imported predators like mongooses, which wiped out the ancient birds from the other Hawaiian Islands)."
Thanks to @SueT for info on this fact!
People in the neighbourhood feed them in winter. Im not sure if this still continues. I read about it 2 years ago cause people where complaining. And they urged the local government to end it.