Red-necked wallabies are established on a British island in the Irish Sea after escaping from a wildlife park more than 50 years ago, according to multiple reports. The animals, originally brought from Australia, have formed a breeding population that now numbers over 1,000 individuals on the island. The articles describe how the wallabies remain part of local life, with residents increasingly accustomed to their presence. All accounts attribute the population to the same long-ago escape from a local wildlife attraction and emphasize the scale of the current population. The coverage also notes that, despite being non-native, the wallabies are widely accepted by islanders, reflecting a long period of adaptation since the initial release. While the sources do not provide detailed figures on distribution across the island or specific ecological or administrative responses, they consistently characterize the wallabies as a large, persistent population that has endured for decades and has become familiar to the local community.