Oddly enough, peregrine falcons will also nest on tall buildings. Three to four eggs are laid in April. Incubation takes about 33 days. Both adults take part in the incubating and feeding of the young. After hatching, the young can fly in 35 to 42 days.
Peregrine falcons prey on pigeons, ducks, blackbirds, and other birds.
In 1990, a pair of peregrine falcons were reported to have stayed for a month in downtown Fargo, North Dakota. However, peregrine falcons have not nested in North Dakota since 1954. Peregrine falcons will use almost any habitat type that provides hunting opportunities. They do, however, prefer to nest in habitats with cliffs. Peregrine falcons have also been known to nest and hunt in cities with tall buildings.