Our Tolerance for Bird Deaths at Energy Facilities
Significant Losses at Power Plants and Transmission Lines Bird Populations Slumping: Since the release of bird status reports at the Asilomar Conference, bird populations have continued to slump, and the list of North American birds with declining populations or otherwise at risk at the regional and continental levels has increased since 2002 where 131 species were then designated (USFWS 2002). Today, these include 147 species on the 2008 Birds of Conservation Concern list (USFWS 2008), 92 birds federally listed as Threatened or Endangered on the Endangered Species Act (ESA), State-listed species, and species listed as high priorities on the U.S. Shorebird Conservation Plan, among others. The growing documented and suspected impacts of structures on birds—from direct collision mortality, barotrauma, electrocutions, cumulative effects, and from habitat fragmentation, disturbance and site avoidance—bode poorly for our b