Bald Eagles
Pacific Region
 

 

Linear Infrastructure

Recommendations for Power Utility Infrastructure:

  • Frame utility structures with adequate separation between power phases or/and other phases/grounds to accommodate large birds:
    • 60 inch minimum horizontal separation (wing span width).
    • 40 inch minimum vertical separation (height).
  • Cover phases or grounds where adequate separation is not feasible.
    • Cover insulators, conductors, bushings, arresters, cutouts, and jumper wires.
  • Pole height should be minimized to reduce attraction; poles with the greatest heights above surrounding terrain have higher likelihood of resulting in electrocutions.
  • Poles located in areas of higher prey abundance or density should be specifically targeted for protection because these poles are likely to have a higher frequency of use. 

The U.S. Fish and Wildlife Service recommends following guidance of the Avian Power Lines Interaction Committee to reduce the possibility of incidental take of eagles and other migratory birds.

The U.S. Fish and Wildlife Service also strongly recommends development of an Avian Protection Plan. Please contact your Local Fish and Wildlife Office if you would like assistance in developing your Avian Protection Plan.

 

Other Linear Infrastructure

Other linear infrastructure activities (such as installation of water lines or construction of roads) generally involves the use of heavy equipment, excavation, land clearing, or other activity that may disturb eagle nests, communal roosts, or foraging areas.

Recommendations for Other Linear Infrastructure:

  • Year Round:
    • Avoid overstory tree removals within 330 feet of eagle nest site, communal roost, or forage area
  • During Breeding Season (January 1 - August 15):
    • Maintain a buffer between the eagle nest site, communal roost, or forage area and the use of heavy equipment, excavation, land clearing, or other activity that may disturb eagles
    • If your activity IS visible or audible to eagles, maintain a buffer of 660 feet
    • If your activity IS NOT visible or audible to eagles, maintain a buffer of 330 feet
  • Outside of Breeding Season (August 16 – December 31):
    • Avoid permanent alterations to landscape/vegetation within 660 feet of nest sites, communal roosts, or forage areas

If you can not meet the recommendations above, your circumstances are such that you need a case-by-case consultation. Please contact your Local Fish and Wildlife Service Office for guidance on additional minimization measures and whether or not a permit may be necessary. 

 

 

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Last updated: April 9, 2012

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