Every evening at sunset, large numbers of communal roosting birds such as starlings and sparrows are flying into wildlife sanctuaries to spend the night in safe, predator-free spaces.
As these populations increase, so does the amount of faeces which can be damaging to ecosystems such as wetlands.
Karen Denyer talks to Jesse about the unintended problems predator free zones have created.
Bothersome birds gate crash pest proof sanctuaries Photo: supplied
