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10-10-16-SWS
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24 BiRd-sAFe Building guidelines <br />b est PRAC ti C es F o R bi R d s AF et Y <br />Lighting design <br />Objective: <br />Undertake strategies <br />to reduce light trespass <br />from buildings, <br />particularly during <br />migration seasons. <br />REDUCING .ExTERIOR .BUILDING .AND .SITE .LIGHTING .has .been .proven .effective .at .reducing .nighttime .migratory .bird . <br />collisions .and .mortality . .At .the .same .time, .such .measures .reduce .building .energy .costs .and .decrease .air .and .light .pollution . .These .guidelines . <br />encourage .efficient .design .of .lighting .systems .as .well .as .operational .strategies .to .reduce .light .trespass .from .buildings, .particularly .during . <br />migration .seasons . . <br />ConsideR eXteRoR LiGht tResPAss PReFeRRed disCouRAGed <br />Light pollution is largely a result of inefficient exterior lighting. <br /> eliminate light directed upwards by attaching cutoff shields to street- <br />lights and external lights. <br /> Highlight building features without up-lighting. <br /> reduce the amount of light that spills outside areas where it is needed <br />for safety and security. <br /> Maximize the useful light directed to targeted areas. <br /> eliminate the use of spotlights and searchlights during bird migration. <br />did YOU KNOW? <br />red lights that don’t flash are most attractive (and therefore <br />deadly) to birds. instead, use flashing white or non-flashing blue or <br />green lights.24 <br />direct exterior lighting downwards and adhere to Lights Out Guidelines <br />Light advertising from above to reduce the light projected skyward <br /> <br /> <br />lighting diagrams courtesy <br />of the City of toronto
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