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Calgary: A Vital Stop for Migratory Songbirds
20 Aug
Summary
- Calgary serves as a crucial stopover for migratory songbirds heading south.
- Urban lights and windows pose significant dangers to migrating birds.
- Calgary is recognized as a certified bird-friendly city.
Calgary provides a critical stopover point for numerous migratory songbirds, including various warbler species, on their annual journey south. Confederation Park, with its abundant insect life and water sources, offers a sanctuary for these birds to rest and feed before continuing their migration. This urban oasis is particularly beneficial due to its unique geography, allowing for better viewing opportunities for birdwatchers.
However, the urban environment presents grave dangers for these travelers. Bright city lights, a phenomenon known as phototaxis, can disorient birds, causing them to mistake lit windows for open spaces. This confusion, along with window reflections, results in millions of bird collisions annually across Canada. To combat this, residents are urged to minimize unnecessary exterior lighting and close curtains at night, while markers on windows can prevent daytime strikes.
The City of Calgary is actively working to mitigate threats to bird populations. This includes upgrading streetlights to LEDs and implementing bylaws to manage outdoor cats, which are significant predators. Calgary was among the first municipalities to be certified as bird-friendly in 2021, joining a growing number of Canadian cities dedicated to avian conservation.
