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Afforestation

10,000 Birds

The neighbors had advised me, from experience, that planting trees without excluding the local free-ranging livestock would be an exercise in futility: first challenge overcome.) I keep my eyes on the prize: a small patch of forest with lots of diversity for wildlife. Alas, this is what I must trim.

ALA 191
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How many birds are killed by windmills and other green energy projects?

10,000 Birds

According to the US Fish and Wildlife Service , there are about 10 billion breeding birds in the US. A recent meta study ( The impact of free-ranging domestic cats on wildlife of the United States ) that applied strict inclusion criteria and some fancy statistics estimates that 2.4 So keep that in mind.

Killing 274
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Feral Cats Are An Invasive Species in North America (and elsewhere)

10,000 Birds

An abstract from a recent paper in Nature : Anthropogenic threats, such as collisions with man-made structures, vehicles, poisoning and predation by domestic pets, combine to kill billions of wildlife annually. Free-ranging domestic cats have been introduced globally and have contributed to multiple wildlife extinctions on islands.