The Roxbury Land Trust and Minor Memorial Library will co-sponsor a program about the recent designation of the Shepaug River as an Important Bird Area March 25 at 1 p.m. at the South Street library.

Corrie Folsom-O’Keefe, Audubon Connecticut’s important bird area coordinator, will speak about the significance and importance of these bird areas and what homeowners can do to encourage and support local bird populations.

An Important Bird and Biodiversity Area is an area identified using an internationally agreed set of criteria as being globally important for the conservation of bird populations.

Birds depend on a diverse range of habitats, and the threats that confront them are equally varied.

The IBA program was developed and sites are identified by BirdLife International. Currently there are over 12,000 IBAs worldwide.

As the U.S. partner for BirdLife International, Audubon spearheads an ambitious effort to identify, monitor, and protect the most important places for birds.

They also collaborate with 19 international partners to extend a web of protection throughout the Western Hemisphere.

To date Audubon has identified 2,758 IBAs covering 417 million acres of public and private lands in the United States.

Among them are high-priority Global IBAs — places like New York City’s Jamaica Bay, areas within Alaska’s Arctic Slope, and coastal bird sanctuaries in Texas.