Protectors of feathered friends are celebrating the New York City Council’s passage of the most expansive legislation in the U.S. aimed at reducing collisions of birds with buildings.

On Dec. 10, the city council voted  43-3 to pass Bird-friendly Materials Initiative 1482B. If Mayor Bill de Blasio (D) doesn’t sign the initiative, it becomes law anyway on Jan. 9. A two-thirds vote in the council would override a veto.