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Wind turbines vs. birds

May 7, 2014

Wind turbines are not killing many birds. They’re lethality is dwarfed by cats, powerlines, and buildings, by several orders of magnitude. Of course, that’s largely because there are so many more cats, powerlines, and buildings than there are wind turbines. Which will continue to be the case. These are not substitutes for one another, so the relevant question isn’t bird-kill per instance, but whether expanding wind power will affect bird populations.

Our backyard sightings this migration include: rosy-chested grosbeak, red tanager, orchard oriole, brown-crested flycatcher, a variety of warblers, and a painted bunting on our front porch. The tepaguaje trees (Leucaena pulverulenta) seem the big attraction.

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