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Cats kill 1 million Australian birds a day, study shows

18:20 15 October 2017 Author :  

The study, published in the journal Biological Conversation, estimates feral cats kill 316 million birds a year, while pet cats kill 61 million birds annually. More than 99% are native.

“Everyone knows that cats kill birds, but this study shows that, at a national level, the amount of predation is staggering, and is likely to be driving the ongoing decline of many species,” said the lead researcher, Prof John Woinarski of Charles Darwin University.

Assoc Prof Sarah Legge of the Australian National University said the researchers had combined data from previous studies.

It was the first study to look at the nationwide impact cats were having on Australia’s birds, Legge said. “We also looked at the traits that were more likely to make a bird susceptible to cats.”

Small- to medium-sized birds, birds that nest and hunt on the ground, and those found on remote islands or arid areas are most at risk.

The scientists estimate there are about 11 billion native birds across the country, suggesting that cats kill about 4% of the population annually.

“We found records of cats killing 338 species of native birds, of which 71 were threatened species,” Legge said. “That’s about 60% of the threatened species in Australia.”

The acting threatened species commissioner, Sebastian Lang, said the government had already sunk more than $30m into projects to reduce the feral threat.

 “Responsible pet owners can help reduce the impact of domestic cats by desexing them and keeping them indoors or in a cat run,” Lang said. “These are great ways to protect our wildlife that can also improve the wellbeing of domestic cats.”

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