City of Victoria, BC, CA

Bird-Friendly Guidelines

  • Educates planners, architects, builders, and homeowners on the bird window collision crisis and how they can incorporate sustainable, bird-friendly practices to reduce these collisions.

  • Goals include reducing light pollution to reduce threats to birds in the city environment by increasing visibility of glass to reduce deadly reflections.

  • Apply visual markers with high contrast to the exterior of glass surfaces (markers on the interior surface of glass are less effective):

    • Incorporate patterns with high contrast into the exterior surface of glazing. Visual markers should be at least 5 mm in diameter. Gaps between markers should be no greater than 5 cm vertically or 10 cm horizontally.