SALISBURY >> The U.S. Forest Service says two cliffs in the Green Mountain National Forest are being temporarily closed to the public to protect peregrine falcon nesting sites.

The Forest Service closes the Rattlesnake Cliff area in Salisbury and the Mount Horrid and Great Cliff area in Rochester each year from March 15 through Aug. 1.

A number of other peregrine nesting areas are also closed in other parts of the state each spring.

Scientists say that last year 49 breeding pairs of the peregrine falcons produced 67 young, a modern record.

Peregrine falcons were pushed out of Vermont in the 1960s by the use of the pesticide DDT. Restoration efforts began in the 1980s. The bird was removed from the state's endangered and threatened species list in 2005.