Cat Population Killing Species United States 
10,000 Birds
SEPTEMBER 16, 2014
However, in this post, I’d like to lay out the basic numbers as we pretend to know them about overall bird mortality, human related causes of mortality, and somewhere in there I’ll note that the number of birds that are killed by windmills is so small that it says “zero” on my pie chart.
10,000 Birds
OCTOBER 25, 2016
Agonizing quandaries concerning invasive species are well-known to wildlife biologists. Thus the decision was made to kill 3,600 Barreds, and it’s hard to fault the inescapable logic of doing so, as one Audubon Society director expressed it: On the one hand, killing thousands of owls is completely unacceptable.
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10,000 Birds
OCTOBER 16, 2012
In short, the answer is that in the United States there are 20 billion birds at the end of the breeding and fledging season, which gets winnowed down to 10 billion by the following early spring. Hardly any Sandhill Cranes are killed by domestic (including ferrel domestic) cats. Raptors either. But this is problematic.
10,000 Birds
JULY 22, 2014
This is approximated by the size of the animal, but really, this has to be adjusted for depending on modality of killing. We do know this: In areas where feral cat populations exist, they are often well established. Also, feral Cats on islands seem to be a serious problem, causing the extirpation of some indigenous species.
10,000 Birds
SEPTEMBER 17, 2013
… Matthew Anderson [of Audubon] said proponents of colonies are putting the interests of one invasive species — cats — over the hundreds of other native ones that are their prey. Cats are domesticated animals that are not indigenous wildlife in North America. Those who violate the ordinance can be fined $200.
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