article thumbnail

How many birds are killed by windmills and other green energy projects?

10,000 Birds

In other words, looking at fledglings (or older) and not chicks, the US bird population normally doubles itself every year, but then get undoubled by … well, various factors probably mostly hypothermia, starvation, disease, and predation. How many birds to cats kill in the United States?

Killing 274
article thumbnail

Are there so many birds that cats don’t matter?

10,000 Birds

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. Other felids are all much larger, the similar sized carnivores are things like minks and ferrets, and they have very different habits.

Cats 189
article thumbnail

Feral Cats Are An Invasive Species in North America (and elsewhere)

10,000 Birds

The plethora of approaches to the feral Cat problem is not an outcome of a diversity of great ideas; it is the ugly chimera of inappropriate compromise among biased and often poorly informed stakeholders. And for rodents and reptiles as well. We do know this: In areas where feral cat populations exist, they are often well established.