Informe sobre el estado de conservación de las aves de USA

Estos días se ha hecho público este informe acerca del estado de conservación de las aves de los Estados Unidos de Norteamérica. Su página web de presentación incluye un inspirado video. Así presentan sus autores este informe:

"Birds are a priceless part of America’s heritage. They are beautiful, they are economically important—and they reflect the health of our environment. This State of the Birds report reveals troubling declines of bird populations during the past 40 years—a warning signal of the failing health of our ecosystems. At the same time, we see heartening evidence that strategic land management and conservation action can reverse declines of birds. This report calls attention to the collective efforts needed to protect nature’s resources for the benefit of people and wildlife."