10,000 Birds

OCTOBER 25, 2016

Agonizing quandaries concerning invasive species are well-known to wildlife biologists. They argue for the elimination of free-range cats entirely. Arriving in North America around the time of Columbus, they have become “one of the most successful invasive species on earth.”.

Feral Cats 257

Feral Cats Cats Tnr Feral 257

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. So keep that in mind.

Killing 274

Killing Cats Fish Birds 274

10,000 Birds

JULY 22, 2014

This almost certainly can be argued to be true just on the basis of logic, because feral Cats are proficient hunters and are entirely out of ecological place. Also, feral Cats on islands seem to be a serious problem, causing the extirpation of some indigenous species. We estimate that free-ranging domestic cats kill 1.4–3.7

Feral Cats 254

Feral Cats North America Feral Cats 254