Frequency increases as egg laying approaches. No nest materials are added. Window boxes and other niches in the buildings provide a place to lay a female egg. Peregrine falcons are building nests and laying eggs at power plants across the state including Wisconsin Public Service's plant in Rothschild. The female chooses a nest site, where she scrapes a shallow hollow in the loose soil, sand, gravel, or dead vegetation in which to lay eggs. What kind of nest do peregrine falcons make? MILWAUKEE (CBS 58) -- The first peregrine falcon eggs of the season have been laid at two We Energies power plants. The peregrine falcon is a raptor – a bird of prey that hunts and feeds on other animals, typically birds. According to the National Aviary, Peregrine Falcons usually lay three to five eggs in a “clutch,” and the incubation period lasts about 30 days, so the eggs are expected to hatch by mid-April. Belle and Allen nest in a man-made nest box provided by the Ohio Department of Natural Resources. Peregrine usually nests on the cliffs of Rock Cliffs. The peregrine falcon is a crow-sized bird (1-2.5 lbs.) Sitting tight also signifies she has her full clutch. with long, pointed wings. Peregrine falcons nest in a scrape, normally on cliff edges. If the first clutch is lost the falcon will lay another if there is enough time left in the breeding season. Val had mated with an older male falcon … The male passes prey it has caught to the female in mid-air. The falcon-watchers on this message board have been keeping track of the drama, which began back in March with the laying of four eggs. How many eggs do Peregrines lay? Window boxes and other niches on buildings provide a place for a female to lay eggs. The chicks hatch over a period of a couple of days, and have smaller size differences than chicks of … Young birds, which are brown and cream colored, are heavily marked with streaks. Both birds share the incubation, which begins with the last or penultimate egg, and takes 29-32 days per egg. A clutch is the number of eggs a female bird will lay for a particular incubation period. An egg is laid every other day until the clutch is complete. This is the sixth year in a row the falcons have used the Weston facility as a place to lay and protect their eggs. Peregrine falcons do not bring nesting material to … The first egg was laid overnight Monday at the Oak Creek Power Plant in Oak Creek. However, the Falcons have been able to adapt to using taller buildings. With Peregrine Falcons, they spend so much time courting, selecting a nest site, incubating, then raising their chicks that they can afford only one clutch per year. Egg laying: Begins in mid March or early April (as of 2016, earliest is March 10). Facts about peregrine falcon nests. Peregrine falcon nesting follows the same pattern every year. 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