New York City Passes a Landmark Bill to Make More Buildings Bird-Friendly

By a vote of 43-3, the City Council approved that all new construction must use materials that prevent avian fatalities.

New York is听admired by tourists and residents alike for its sleek, modern buildings and distinctive skyscrapers, but those architectural feats also make the city a deadly trap for migrating birds.

In an effort to make the city safer for resident birds as well as the migrants that travel听through听every spring and fall, the City Council passed a on Tuesday requiring 鈥渂ird-friendly鈥 glass on all new construction to reduce building collisions. This landmark legislation passed by a vote of 43-3, making New York the nation鈥檚 largest city to require architecture that mitigates avian fatalities. A spokesman for Mayor Bill de Blasio he supports the bill, which will become law a year after its passage.

鈥淭his bill is a compromise forged by our diverse consortium, which wrestled with and reconciled competing interests of many sorts鈥攄esign, light, height, use, location, cost, bird mortality,鈥 said听Kathryn Heintz, executive director of ,听in a .听Council members credit Heintz's group with educating them about the scale of the problem and the available solutions. 鈥淚t鈥檚 a huge leap forward for long-term conservation," Heitnz added. "It will reduce collisions and save migratory birds whose numbers are declining dramatically."

NYC 探花精选 estimates that 90,000 to 230,000 birds are killed every year from flying into the city鈥檚 buildings. Windows and other glass are especially dangerous for birds, which often mistake the reflective surfaces for sky or vegetation and, as a result, fly straight into the buildings.听

Introduced in March by Democratic City Council member Rafael Espinal, this new bill requires new construction and major renovations to install materials that are visible to birds, such as dotted patterns, tints, or glazing听on glass and windows. Specifically, the bill requires that at least 90 percent of the exterior of a building鈥檚 first 75 feet be constructed with bird-friendly materials. Other cities including and have adopted similar regulations to mitigate bird injuries and deaths from collisions.

These relatively simple measures have proven to be extremely effective. In 2013, the Jacob K. Javits Convention Center in Manhattan replaced its windows with fritted glass, which resulted in a 90 percent reduction of bird deaths, according to NYC 探花精选.

鈥淭he materials and techniques that prevent bird collisions are already commonly used for a variety of reasons in our buildings; this legislation mandates their use in ways that also protect birds in cost effective ways,鈥 said Benjamin Prosky, executive director of American Institute of Architects New York. 鈥淎IANY and its members are proud to have fought for this commonsense bill.鈥

The city has also implemented measures in previous years to make the metropolitan area safer for migrating birds, specifically through 探花精选鈥檚 Lights Out initiative. In 2015, Governor听Andrew Cuomo听announced that state buildings will turn off non-essential outdoor lighting from 11 p.m. until dawn during peak migration in the spring and fall.听

However, Cuomo last month听听that would have established a committee to create regulations for bird-safe buildings. Cuomo cited concerns about the cost of a study the bill called for, and about giving policymaking authority to an appointed council. Meanwhile,听Congress is considering听legislation that would require federal buildings to incorporate bird-friendly building materials.

鈥淐ollisions with buildings are one of the greatest threats to birds, and one of the most preventable,鈥 said听Ana Paula Tavares, executive director of , in a statement. 鈥淣orth America has lost nearly 3 billion birds since 1970 and we must make every effort to create a safer future for New York State鈥檚 wildlife. 探花精选 is thrilled that the New York City Council has set this precedent for the rest of the nation to help reduce or eliminate mortality from collisions.鈥