Each spring and fall, tens of millions of migratory birds cross the American continent alongside main pure corridors often called flyways. These flyways join ecosystems, economies, and cultures from the Arctic to Patagonia, stretching like invisible highways over mountains, rivers, and coastlines and guiding the motion of total flocks throughout the continent.
Though some species undertake extraordinary nonstop flights, for many others migration happens in phases, with successive stops to relaxation and refuel; actually, the cumulative time spent at these stopover websites can exceed the overall time in flight. However when these stops happen in urbanized landscapes, birds should face further obstacles and threats. In cities situated inside these corridors, the chance of mortality will increase dramatically.
Collisions with buildings have turn out to be one of many main causes of this mortality, particularly because of the in depth use of glass surfaces in these constructions. It’s because by reflecting the sky, bushes, or surrounding vegetation, these facades create the phantasm of a steady habitat; since birds don’t understand the glass as a bodily barrier, they fly instantly into these surfaces, inflicting impacts that usually lead to severe or deadly accidents, thereby jeopardizing the steadiness of ecosystems and the environmental providers that birds assist preserve.
The Americas boast one of many highest ranges of biodiversity on the planet, house to practically 50% of the world’s chicken species, with greater than 3,700 species recorded throughout the continent. On this context, the best way cities are deliberate and constructed performs a decisive function in sustaining ecological connectivity and lowering the dangers confronted by birdlife in a territory that’s key to international biodiversity.
In line with a research revealed by ABC Birds , greater than 1 billion birds die annually from collisions with glass surfaces in the USA alone, suggesting that the dimensions of the issue globally is significantly higher. The National Audubon Society has additionally warned of the severity of this drawback and highlighted the significance of incorporating bird-friendly design to stop collisions, cut back chicken mortality, and remodel city environments into safer areas for biodiversity.
A metropolis on a key flyway
Panama’s geographic location makes it some of the related sections of the Americas Flyways system. For tens of millions of birds, it isn’t solely a transit space, but in addition a essential place to relaxation, feed, and regain power earlier than persevering with their journey throughout the continent. This situation makes the nation a key node for ecological connectivity between North, Central, and South America inside the Americas Flyways, essentially the most numerous flyway system on this planet, house to greater than 2,000 chicken species.
On this context, CAF’s Northern Hub, a constructing at present below improvement in Panama Metropolis with an funding of USD 88 million, represents a concrete alternative to combine bird-friendly design into city infrastructure. From its conception, the challenge was deliberate below sustainability and environmental effectivity standards, with the aim of assembly LEED certification requirements by incorporating measures for power effectivity, accountable water use, and decreased environmental impacts.
The coordinated work between conservation and structure specialists made it doable to combine bird-friendly design standards into the challenge, grounded in scientific proof. Consequently, the technical specs for the façade had been up to date, and the glass designed below these standards is at present being manufactured at a specialised manufacturing facility in Europe.
“Integrating engineering with conservation science permits us to make knowledgeable selections that cut back impacts and result in really sustainable infrastructure. Within the building of the Northern Hub in Panama, we integrated bird-friendly standards, primarily based on scientific proof, to guard a key part of the Americas flyways.”
Luisa Plaza, govt at CAF’s Directorate of Bodily Infrastructure Growth and Upkeep
Greater than merely lowering collisions, bird-friendly structure might be understood as a type of city ecological infrastructure. A major instance of this strategy is St. John’s Terminal, Google’s constructing in New York, whose biodiversity part was developed in collaboration with the NYC Hen Alliance. Its redesign integrated native vegetation, stormwater administration, and inexperienced areas that at the moment are utilized by migratory birds. On this constructing alone, scientists from the NYC Hen Alliance recorded greater than 60 chicken species utilizing the created habitat to feed, together with 11 species by no means earlier than documented on town’s inexperienced roofs, such because the Yellow warbler (Setophaga aestiva)
However its advantages should not restricted to wildlife: the sort of design additionally creates more healthy, extra engaging, and extra inspiring environments for individuals by strengthening their on a regular basis reference to nature.
This dedication is a part of the strategy promoted by the Americas Flyways Initiative (AFI), an alliance led by Audubon, BirdLife Worldwide, and the Growth Financial institution of Latin America and the Caribbean (CAF), which promotes totally different options to cut back the dangers confronted by birdlife by integrating chicken conservation throughout infrastructure planning, design, and financing processes within the Americas.
On a continent linked by flyways, each constructing counts. CAF’s Northern Hub exhibits that cities can cease being obstacles and turn out to be a part of the answer when science guides design selections, akin to the usage of bird-safe glass, purposeful vegetation, and lighting methods that cut back dangers and help a extra harmonious coexistence between biodiversity and concrete life.
“Cities symbolize a singular alternative for chicken conservation. Buildings with vegetated façades and bird-safe glass not solely create habitat and cut back collisions however additionally generate areas that carry individuals nearer to nature. Designing with each birds and other people in thoughts helps construct extra sustainable city environments, the place native conservation actions contribute to hemispheric affect.”
Dustin Partridge, PhD, Director of Conservation and Science, New York Metropolis Hen Alliance.
This isn’t merely a symbolic gesture, however above all a concrete dedication to integrating biodiversity into funding and concrete planning selections within the Americas, guided by technical standards, scientific proof, and a long-term imaginative and prescient. It is usually a dedication aligned with an more and more seen worldwide pattern: bird-friendly design initiatives are already being acknowledged for his or her environmental and architectural worth, as was the case in 2025 with Yale’s Bird-Friendly Building Initiative, which obtained an award of excellence from the Worldwide Sustainable Campus Community.
As the primary constructing of its form to include bird-friendly design standards inside CAF’s infrastructure portfolio, the Northern Hub will turn out to be a reference level for future tasks within the area, demonstrating that integrating biodiversity from the earliest phases of design will help information city progress towards options which might be extra carefully aligned with conservation wants and medium- and long-term environmental priorities.
