Bird-Friendly Building Design Bird-Friendly ... - Lights Out Indy

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American Woodcock are often victims of collisions. This bird hit a window inWashington D.C. in March, 2011. Photo: Dariusz Zdziebkowski, ABC
APPENDIX III: Evaluating Collision Problems - A Toolkit for Building OwnersOften, only part of a building is responsible for causingmost of the collisions. Evaluation and documentationcan help develop a program of remediationtargeting that area. This can be almost as effective asmodifying the entire building, as well as being less expensive.Documentation of patterns of mortality andenvironmental features that may be contributing tocollisions is essential. Operations personnel are oftengood sources of information as they may come acrossbird carcasses while performing regular maintenanceactivities. People who work near windows are oftenaware of birds hitting them. Initiating regular monitoringnot only documents mortality patterns, butalso provides a baseline for demonstrating improvement.The following questions can help guide theComparison of different retrofit optionsevaluation and documentation process by identifyingfeatures likely to cause collisions.Seasonal TimingAre collisions happening mostly during migrationor fledging periods, in winter, or year round? If collisionshappen only during a short time period, it maybe possible to apply inexpensive, temporary solutionsduring that time and remove them for the restof the year.Some birds will attack their own reflections, especiallyin spring. This is not a true collision. Territorialmales, especially American Robins and Cardinals,perceive their reflection as a rival male. They are unlikelyto injure themselves, but temporarily blockingthe offending window from the outside should resolvethe problem.Diurnal TimingAre collisions happening at a particular time of day?The appearance of glass can change significantlywith different light levels, direct or indirect illumination,and sun angles. It may be possible to simplyuse shades or shutters during critical times (seeAppendix II).WeatherDo collisions coincide with particular weather conditions,such as foggy or overcast days? Such collisionsmay be light-related. It may be possible to create anemail notification system, asking building personnelto turn off lights when bad weather is forecast.Material Effectiveness Cost Application Appearance Longevity UpkeepSeasonal, ***** $ * * na natemporary solutionsNetting ***** $$ ** *** **** ***Window film ***** $$$ **** ***** *** ****Screens ***** $$ *** **** ***** ****Shutters ***** $$$ *** **** ***** ****Grilles ***** $$$ **** ***** ***** ****Replace glass ***** $$$$$ ***** ***** ***** ****5 stars/$ = highly effective expensive easy attractive long-lasting minimalRobins are frequently killed by glass on buildings near meadows andlawns. Photo: Christine Sheppard, ABC, July 2009Bird-Friendly Building Design49
Page 2: The area of glass on a façade is t
Page 5 and 6: Executive SummaryCollision with gla
Page 7 and 8: Why Birds MatterFor many people bir
Page 11: The Properties of GlassGlass can ap
Page 14 and 15: Plantings on setbacks and rooftops
Page 16 and 17: Solutions: Glass
Page 18 and 19: FOA made extensive use of bamboo in
Page 20 and 21: Awnings and OverhangsOverhangs have
Page 22 and 23: Patterns on GlassPatterns are often
Page 24 and 25: Opaque and Translucent GlassOpaque,
Page 27 and 28: This window at the Philadelphia Zoo
Page 29 and 30: Artificial light is increasingly re
Page 31 and 32: Reducing exterior building and site
Page 33 and 34: Downtown Houston during Lights Out.
Page 35 and 36: Changing human behavior is generall
Page 37 and 38: APPENDIX I: THE SCIENCE OF BIRD COL
Page 39 and 40: species - is still being investigat
Page 41 and 42: Both increased height of trees and
Page 43: argument that patterns applied to t
Page 46 and 47: Nocturnal MigrantsMany songbirds mi
Page 50 and 51: The white stripes on this glass wal
Page 52 and 53: Madrid’s Vallecas 51, designed by
Page 54 and 55: REFERENCESAvery, M.L., P.F. Springe
Page 56 and 57: External shades, as shown here on t

Bird-Friendly Building Design Bird-Friendly ... - Lights Out Indy

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