If harm to native wildlife is the main concern then there are much bigger targets for control than grey squirrels.
The fate of deer carcasses is a crucial consideration in monitoring the success of future culling.
The NSW government has announced plans to remove feral deer from its list of official game animals. With careful monitoring, the resulting free-for-all could help curb their booming numbers.
They swim, they eat, they multiply.
The government’s target to kill 2 million feral cats sounds impressive, but lacks scientific rigour.
The plan to kill 2 million feral cats nationwide by 2020 makes for good headlines. But it's also a simplistic goal that won't necessarily deliver conservation benefits to native species.
Boxing Day Hunt, 2016.
Fox hunting has been banned in the UK since 2004 – so why is it still happening?
Wild boars are being scapegoated for an epidemic of African swine flu that threatens the pork industry.
Warning sign at a Cape Cod beach.
The return of white sharks to Cape Cod, Massachusetts was a tourism success story – until a shark killed a swimmer. Can the Cape's residents and visitors learn to share the ocean with these apex predators?
Wedge-tailed eagles have been found poisoned in East Gippsland.
The poisoning of dozens of wedge-tailed hawks in Victoria could affect the entire wild population.
Research suggests there is no “safe number” of brumbies that will avoid harm to mountain ecosystems.
Failing to cull feral horses in Kosciuszko National Park may end up promoting environmental destruction while actually increasing the horses' suffering.
Goldilock Project / shutterstock
A reserve near Amsterdam lost many wild cattle and deer over the tough winter, leading to public protests. Yet this was a failure of Dutch politics rather than rewilding itself.
Jason Gilchrist / jasongilchrist.co.uk
Grey squirrels have lots of attractive characteristics, yet they are actively persecuted by humankind.
When the chips are down.
What's the answer? Fight or flight?
White sharks are one of the species targeted in shark programs, but are also threatened.
White shark image from www.shutterstock.com
Queensland premier Annastacia Palaszczuk has offered to extend the state's shark netting and drum lines into New South Wales.