Increasing human encroachment into mountain areas has drastically reduced bush robin habitats, and not only is their breeding disturbed by humans 'own activities, but the dogs that come with people also destroy the birds' nests and eat their eggs and young. Away from the roads, how do conditions for collared bush robins 'survival compare with the past?
尤其隨著山區開墾，栗背林鴝可居之地銳減，人類活動不僅干擾牠們繁殖，甚至隨人而至的狗也會破壞鳥巢、掠食鳥蛋與雛鳥，因此公路之外的世界，栗背林鴝的生存條件較之過去如何？