Research done in Dunedin on cats' hunting habits backs
economist Gareth Morgan's claims about the impact the domestic
pet has on native wildlife.
The researchers and Forest and Bird hope Dr Morgan's Cats to
Go website will start people thinking about what their cat is
doing to wildlife.
The website claims that ''cats are wiping out our native
Forest and Bird's Kevin Hackwell said research by University
of Otago was the most in-depth done in New Zealand on
domestic cats and showed cats did kill native wildlife but
also that putting bells on cats halved the number of birds
''Gareth has done us a favour by raising the issue.''
If the figures from the Otago University study were
extrapolated out for the whole of New Zealand,
''conservatively'' cats were killing ''about a million native
birds'' a year, Mr Hackwell said.
He hoped people would become more responsible pet owners by
putting bells on their cats and getting them neutered.
Research on domestic cats by Otago's zoology department and
headed by Dr Yolanda van Heezik found 37 Dunedin cats known
to be prolific hunters killed half the number of birds when
the birds could hear them coming as they did when hunting
Without collars, the cats caught 378 animals, including 82
birds, but only 41 birds were caught when the cats wore
The research was based on what they returned home with.
''The bottom line is cats catch an awful lot of prey,
including native and exotic birds, rats and mice, but it's in
proportion to what is out there.''
Recent United States research had shown that cats caught more
than they brought back to the house, often leaving their prey
behind or eating it on site.
Ensuring cats were kept inside was more common in other
countries, including Australia, she said.
While it was important cats' welfare was looked after, their
impact on the country's biodiversity also needed to be
''There is potential in the future for a more effective
device to reduce prey caught.''
The department had also done research which observed the
impact of cats on lizards.
''Any cats have a significant impact on lizards. They really