In 2006, the Twin Cities Ecological Services Field Office coordinated the second year of peregrine falcon post-delisting monitoring in Region 3. 

Monitoring is conducted once every three years and will continue until 2015. 

In 2006, 25 randomly selected territories in Region 3 were monitored by states and other partners.  Only one of these sites, Corundrum Point in Minnesota, was on a natural cliff site – all others were on a variety of human-made structures. 

Peregrine falcon pairs occupied 23 of the 25 sites and every occupied site successfully produced at least one fledgling, with a mean of 2.9 fledglings per occupied nest. 

Data clearly indicates that peregrine falcons continue to thrive in the upper Midwest since they were delisted in 1999.